# for the function f(x)=7/x+6, find the average rate of change of f from 1 to x

127,529 results

1. ### Calulus

Consider the following function. f(t) = 3t2 − 3 (a) Find the average rate of change of the function below over the interval [3, 3.1]. (b) Compare this average rate of change with the instantaneous rates of change at the endpoints of the interval. (at t = 3) (at t = 3.1)
2. ### Math

Could someone help me with these questions, I don't know question c) and d) Consider the function f(x) = (0.1x-1)(x+2)^2. a) Determine the function's average rate of change on -2<x<6. Answer; Avg rate of change is -3.2 b) Estimate the instantaneous rate of change at x=2...
3. ### Math~Reinyyy

Could someone help me with these questions, I don't know question c) and d) Consider the function f(x) = (0.1x-1)(x+2)^2. a) Determine the function's average rate of change on -2<x<6. Answer; Avg rate of change is -3.2 b) Estimate the instantaneous rate of change at x=2...
4. ### calculus

Given the function: f(x)=x^3-4x^2+6x-3 a) Find the average rate of change of the function on the interval [2,4] b)find the instantaneous rate of change of the function at x=3.
5. ### calculus (rate of change)

consider the function f(x)=x^2-6x+12 a. find the average rate of change over the interval [-1,3] b. use the definition of the derivative to find f prime(x) c. find the instantaneous rate of change at the point where x=3 d. find the value of x on the interval [-1,3] such that f...
6. ### calculus

Find the average rate of change f(x)=x^3-8x+9 a. from -3 to -2 b. from -1 to 5 c. from 5 to 9 A. what is average rate of change of f(x)=x^3-8x+9 from -3 to -2? B. what is the average rate of change of f(x)-x^3-8x+9 from -1 to 5? C. what is the average rate of change of f(x)=x^...
7. ### Math

Verify if question a is correct I calcuated twice now and I am getting 0 as an answer. I don't understand question b a) Examine the function f9x) =2(0.5x-1)^2(x+2)^2. Determine the function's average of change from -2<x<2. I got answer: =0-0/-2-2 =0 Avg rate of change: 0...
8. ### MATH @Damon @ms. Sue

Given the function f(x) = 2(3)^x, Section A is from x = 0 to x = 1 and Section B is from x = 2 to x = 3. Part A: Find the average rate of change of each section. Part B: How many times greater is the average rate of change of Section B than Section A? Explain why one rate of ...
9. ### calculus

i'm not sure how to do this. can someone help, please? thanks! consider the function f(x0 = x^2 + 2x on the interval [-2, 2] a. draw a sketch of the graph of f(x). find the average rate of change on the interval [-2, 2] and sketch this secant line. b. find an expression that ...
10. ### math

Two functions, A and B, are described as follows: Function A y = 9x + 4 Function B The rate of change is 3 and the y-intercept is 4. How much more is the rate of change of function A than the rate of change of function B? 2 3 6 9 I believe the answer is either C or B but I am ...
11. ### Math

Find the average rate of change in height of the orange from t=2 to t=5 (in feet per second) The equation is h (t)=605+15t-4.9t^2 in feet. I know the the average rate of change is change in q/ change in time. Do I put t=3 and subtract the quantity of 5 and 2 in the formula for...
12. ### pre-cal: graphs of functions- fill in the blank

To find the domain of a function from its graph... To find the range of a function from its graph... To approximate the relative minimum or maximum of a function using a graphing utility,... Let a(,f(a)) and (b,f(b)) be two points on the graph of a nonlinear function f. The ...
13. ### calculus

You are working as assistant to a major movie producer from Hollywood, but mainly you look after pre-release film publicity. You are an old hand at publicity, having worked in several production companies before. Based on previous experience you have developed a model for the ...
14. ### MATH

Create a graph of a function given the following information: The instantaneous rate of change at x = 2 is zero. The instantaneous rate of change at x = 3 is negative. The average rate of change on the interval 0 <x <4 is zero.
15. ### Algebra

For the function f(x) = 5/x+4 find the average rate of change of f from 1 to x:
16. ### Calculus

for f(x)=-x^2 +1, which value is the largest magnitude? a) average rate of change from x=-1 to x=1 b) instanteneuous rate of change at x=3 c) instanteneous rate of change at x=0 average rate of change from x=-4 to x=0
17. ### average rate of change

Please help.. Determine the value of "g" so that the average rate of change of the function h(x)=x^2+3x+2 on the interval -3≤x≤g is -1. Thank you.
18. ### Average of Rate change

Please help.. Determine the value of "g" so that the average rate of change of the function h(x)=x^2+3x+2 on the interval -3≤x≤g is -1. Thank you.
19. ### Average rate of change

Please help.. Determine the value of "g" so that the average rate of change of the function h(x)=x^2+3x+2 on the interval -3≤x≤g is -1. Thank you.
20. ### math

How do i find the average rate of change of the function f(x)=5x from x1=0 to x2=3 .....im so confused
21. ### college algebra

for the function f(x)=7/x+6, find the average rate of change of f from 1 to x.
22. ### Math

For the function, find the average rate of change of f from 1 to x:f(x)-f(1)/x-1 x does not equal 1 f(x) = x3 + x
23. ### ---college algebra (average rate of change)---

Find the average rate of change of g(x) = -2x2 + 36x - 142 on the interval from x = -5 to x = 10.
24. ### algebra 2

find the average rate of change for the function f(x)=60x-3x^2 between x=6 and x=19
25. ### Math/Calculus

Find the average rate of change on the interval [-6,3] of the function h(x)=x^2-4x+7. A. -7 B. 7 C. 1 D. 13 E. -5
26. ### College Algebra

Find the average rate of change for function f(x)=3x^(2)-5 at the points x[1]=6 and x[2]=10
27. ### MATH URGENT

find the average rate of change between f(-4) and f(-1) in the function f(x)= x^2+2x-8
28. ### calculus

find the average rate of change of the function f(x)=x^3+1 over the interval [-1,1]
29. ### Trigonometry

Find the average rate of change for the function between the give values. f(x)=-4x + 8; from 1 to 2

For the function f(x)= 8/x+7,find the average rate of change of f from 1 to x.
31. ### calculus

for the function f(x)=5/x+4, find the average rate of change of f from 1 to x. please show work
32. ### Function: Rate of Change

Joe is investigating the rate of change of the function y=cos x on the interval xE[0,2π]. He notices that the graph of y=cos x passes through the x-axis at 45°. He also determines the instantaneous rate of change at x = 0, π, and 2π by inspection. Based on this...
33. ### function rate of change

Joe is investigating the rate of change of the function y=cos x on the interval xE[0,2π]. He notices that the graph of y=cos x passes through the x-axis at 45°. He also determines the instantaneous rate of change at x = 0, π, and 2π by inspection. Based on this...
34. ### calculus

g(t)=2+cos t; [0,pi] Can you help me find the average rate of change of the function over the given interval?
35. ### Calculus

If f is a function such that [(f(b)-f(a))/(b-a)]=2 , then which of the following statements must be true? a.f(a) = f(b) = 2 b.The slope of the tangent line to the function at x = a is 2. c.The average rate of change of the function on the interval [a, b] is 2 d.The linear ...

Given the numerical values shown for the function f(x), find approximate values for the derivative of f(x) at each of the x-values given. x= 0 1 2 3 4 5 6 7 8 f(x)= 13 15 16 17 17 14 11 9 7 f'(x)= 2 1 1 1 0 -3 -3 -2 -2 What seems to be the greatest rate of change of f(x)? rate...
37. ### College Algebra

Let h(12) = -100 for some function h(x), defined everywhere. If the average rate of change of h(x) from x = 12 to x = 20 is 50, then find h(20).
38. ### calculus

Let f be the function defined by f(x)= sqrt(x), 0 <or= x <or= 4. and f(x)= 6-x, 4 < x <or= 6 a. Is f continuous at x=4? justify. b. Find the average rate of change of f(x) on the closed interval [0,6]. c. suppose the function g(x)= k sqrt(x), 0 <or= x <or= 4...
39. ### math

h(t)=cos t, [pi/4, 3pi/4] find the average rate of change of the function over the given interval or intervals
40. ### Math

The table below represents the velocity of a car as a function of time: Time (hour) x Velocity (miles/hours) y 0 50 1 52 2 54 3 56 Part A: What is the y-intercept of the function, and what does this tell you about the car? Part B: Calculate the average rate of change of the ...
41. ### math

A function is given below. Determine the average rate of change of the function between t = 9 and t = 9 + h. f(t) = Square root of 4t
42. ### math

Find the average rate of change from x = 10 to x =17 for the function f(x) = 0.01(2) ^x and select the correct answer below A. 10.24 B. 185.78 C. 1300.48 D. 1310.72 Is it A?
43. ### CALC SHOULD BE EASYISH

Let f be defined as follows. F(x)=y=x^2 -7 (a) Find the average rate of change of y with respect to x in the following intervals. from x = 4 to x = 5 from x = 4 to x = 4.5 from x = 4 to x = 4.1 (b) Find the (instantaneous) rate of change of y at x = 4
44. ### math

Let f be defined as follows. y=f(x)=x^2-12x (a) Find the average rate of change of y with respect to x in the following intervals. from x = 5 to x = 6 ?? from x = 5 to x = 5.5 ?? from x = 5 to x = 5.1 ?? (b) Find the (instantaneous) rate of change of y at x = 5. ??
45. ### calculus

is average rate of change and average value the same or will you get a different answer for each this is calculus so it's the mean average. it's using the formula and integrating. I don't understand your question, but I can assure you that average rate of change and average ...
46. ### math

Let f be defined as follows. y = f(x) = x^2 - 4 x (a) Find the average rate of change of y with respect to x in the following intervals. from x = 5 to x = 6 from x = 5 to x = 5.5 from x = 5 to x = 5.1 (b) Find the (instantaneous) rate of change of y at x = 5. 4
47. ### calculus

Let f be defined as follows. F(x)=y=x^2 -7 (a) Find the average rate of change of y with respect to x in the following intervals. from x = 4 to x = 5 from x = 4 to x = 4.5 from x = 4 to x = 4.1 (b) Find the (instantaneous) rate of change of y at x = 4.
48. ### Algebra I Math

Find the average rate of change from x = 10 to x =17 for the function f(x) = 0.01(2) ^x and select the correct answer below A. 10.24 B. 185.78 C. 1300.48 D. 1310.72 Is it C?
49. ### rate of change

Joe is investigating the rate of change of the function y=cos x on the interval xE[0,2π]. He notices that the graph of y=cos x passes through the x-axis at 45°. He also determines the instantaneous rate of change at x = 0, π, and 2π by inspection. Based on this...
50. ### Math

The table below represents the velocity of a car as a function of time: Time (hour) x Velocity (miles/hours) y 0 50 1 52 2 54 3 56 Part A: What is the y-intercept of the function, and what does this tell you about the car? (4 points) Part B: Calculate the average rate of ...
51. ### Algebra

The table below represents the distance of an airplane from its destination as a function of time: Time (hours) x Distance (miles) y 0 2,700 1 2,160 2 1,620 3 1,080 4 540 Part A: What is the y-intercept of the function, and what does this tell you about the airplane? (4 points...
52. ### instantaneous rate of change problem

Joe is investigating the rate of change of the function y=cos x on the interval xE[0,2π]. He notices that the graph of y=cos x passes through the x-axis at 45°. He also determines the instantaneous rate of change at x = 0, π, and 2π by inspection. Based on this...
53. ### Math

The graph represents function 1 and the equation represents function 2: A graph with numbers 0 to 4 on the x-axis and y-axis at increments of 1. A horizontal straight line is drawn joining the ordered pairs 0, 3 and 4, 3. Function 2 y = 3x + 1 How much more is the rate of ...
54. ### MATH URGENT!!!!!

The graph represents function 1 and the equation represents function 2: A graph with numbers 0 to 4 on the x-axis and y-axis at increments of 1. A horizontal straight line is drawn joining the ordered pairs 0, 3 and 4, 3. Function 2 y = 2x + 1 How much more is the rate of ...
55. ### Algebra (math)

The graph represents function 1 and the equation represents function 2: A graph with numbers 0 to 4 on the x-axis and y-axis at increments of 1. A horizontal straight line is drawn joining the ordered pairs 0, 3 and 4, 3. Function 2 y = 4x + 1 How much more is the rate of ...
56. ### Pre calculus/ Advanced Functions

Samuel is investigating the rate of change of the function f(x) = cos x on the interval xE[0, 2pi]. He notices that the graph of f(x) passes through the x-axis at pi/2. He also determines the instantaneous rate of change at x = 0, pi and 2pi by inspection. Based on this ...
57. ### Calculus

y = f(x) = x^2 - 6 x (a) Find the average rate of change of y with respect to x in the following intervals. from x = 2 to x = 3 from x = 2 to x = 2.5 from x = 2 to x = 2.1 (b) Find the (instantaneous) rate of change of y at x = 2.
58. ### calculus

Let F(s)=5s2+1s+4. Find a value of d greater than 0 such that the average rate of change of F(s)from 0 to d equals the instantaneous rate of change of F(s)at s=1.
59. ### Calculus

Let F(s)=5s2+5s+4 . Find a value of d greater than 0 such that the average rate of change of F(s) from 0 to d equals the instantaneous rate of change of F(s) at s=1. d=
60. ### AP Calculus

The wind chill is the temperature, in degrees Fahrenheit, a human feels based on the air temperature, in degrees Fahrenheit, and the wind velocity (v), in miles per hour (mph). If the air temperature is 32degrees Fahrenheit, then the wind chill is given by W(v)=55.6-22.1v^.16 ...
61. ### Calc

The wind chill is the temperature, in degrees Fahrenheit, a human feels based on the air temperature, in degrees Fahrenheit, and the wind velocity (v), in miles per hour (mph). If the air temperature is 32degrees Fahrenheit, then the wind chill is given by W(v)=55.6-22.1v^.16 ...
62. ### calculus

What is the instantaneous slope of y =8/x at x = -3? What is the average rate of change of y with respect to x over the interval [-3, 4] for the function y = 2x + 2? The surface area, S, of a sphere of radius r feet is S = S(r) = 4πr2. Find the instantaneous rate of ...
63. ### College Algebra

f(x)=3.1ã(x+19 1.Decribe the graph be obtained using transformations of the square root function. First, vertically stretch the graph of f (x) = by the factor 3.1; then shift the results up 19 units. 2.Determine how to tell the model describes the actual height of a four ...
64. ### math(rate of change)

find the average rate of change f(x)=x^2 + 2x between x=0 and x=6 can anyone please help me explain why the answer is 8? thank you!
65. ### Calculus Rate of Change

Find the average rate of change h(x)=2x^2-4 from x=2 to x=6 Simplify your answer as much as possible
66. ### Precalculus

Hey so I need help on a problem from an assignment that my teacher won't help at all. -WRITE IN COMPLETE SENTENCES- "An oil strikes a sand bar that rips a hole in the hull of the ship. Oil begins leaking out of a tanker with spilled oil forming an approximate circle around the...
67. ### Math

find the average rate of change from 1 to x Find the average rate of change from 1 to 3 Using f(x) = -2x^2+6x
68. ### Math

find the average rate of change from 1 to x Find the average rate of change from 1 to 3 Using f(x) = -2x^2+6x
69. ### calculus

Find the average rate of change of the function f(x) = 2x4 + 3x2 ¡ x + 2: (a) on the interval [0; 3] and (b) on the interval [¡2; 0]
70. ### math

The function gives the cost to manufacture x items. C(x) = 20,000 + 5x − x2 20,000 ; x = 20,000 Find the average cost per unit of manufacturing h more items (i.e., the average rate of change of the total cost) at a production level of x, where x is as indicated and h = ...
71. ### calculus

If we know that for a function, f(x), that f(2) = 6 and f(5) = 1, what is the average rate of change of f(x) on the interval [2,5]?
72. ### c

what is the average rate of change for the function g(x)=3x^2-4 over the interval (-1,3)?
73. ### Algebra

Find the average rate of change of f(x)=6x²−3 on the interval [2,a]. Your answer will be an expression involving a What I did so far: I found f(2) which is 21 and that would make the function (2,21) Then, I found f(a) which is 6a^2-3 and that would make the function (a,6a^2-3)
74. ### Algebra - Can you PLEASE check - I"m stuck!

Bob is studying the growth of a particular species of plant. He writes the following equation to show the height of the plant f(n), in cm, after n days: F(N)=10(1.02)^n 1. Starting from 0 days, plug x-values into our function to find out how many days it takes for the plant to...
75. ### College Calc

The average daily metabolic rate for rodents can be expressed by the function m=85.65w^0.54, where w is the weight in kg and m is the metabolic rate in kcal/day. Determine the rate of change in the metabolic rate with respect to time for a 0.25kg rodent that is gaining weight ...
76. ### Instantaneous rate of change

Please help.. Joe is investigating the rate of change of the function y=cos x on the interval xE[0,2π]. He notices that the graph of y=cos x passes through the x-axis at 45°. He also determines the instantaneous rate of change at x = 0, π, and 2π by inspection...
77. ### college algebra

A function is given. Determine the average rate of change of the function between the given values of the variable. f(t) = 6/t ; t = a, t = a + h
78. ### college algebra

A function is given. Determine the average rate of change of the function between the given values of the variable. f(x) = 6 âˆ’ x2; x = 1, x = 1 + h
79. ### Algebra

A function is given. Determine the average rate of change of the function between the given values of the variable. f(x) = 6 − x2; x = 2, x = 2 + h
80. ### ---college algebra (average rate of change)---

If the average rate of change of g(x) from x = 1 to x = 9 is 20, and if the average rate of change of g(x) from x = 9 to x = 21 is 40, then what is the average rate of change of g(x) from x = 1 to x = 21?
81. ### algebra

1. Find the average rate of change of f(x)=x^3-9x+9: a) from -8 to -2 b) from -1 to 1 c) from 1 to 4 a) what is averge rate of change of f (x) =x^3-9x+9 from -8 to -2?
82. ### Math

Determine the value of 'a' so that the average rate of change of the function h(x)=x^2+3x+2 on the interval -3<=x<=a is -1
83. ### Pre-Calc

What is the average rate of change of the function f, given by f(x) = x2 + 1, on the interval [2,5]?
84. ### calculus

h(t)=cot t a.) [pi/4,3pi/4] b.) [pi/6,pi/2] Find the average rate of change of the function over the give n interval and intervals. Please show step by step instructions. Thanks
85. ### AP CALC

1. Let f be a twice-differentiable function such that f (2) = 8 and f (4) = 5. Which of the following must be true for the function f on the interval 2 ≤ x ≤ 4. I. The average value of f is 6.5 II. The average rate of change of f is -1.5 III. The average value of f...
86. ### grade 12 calculus and vectors

Determine the average rate of change form x = 1 to x = 4 for each function. a) y= x b) y=x^2 c) y=x^3 d) y=7
87. ### math

What is the average rate of change of the function f(x)=20(1/4)^x from x = 1 to x = 2? Enter your answer as a decimal. Do not round.
88. ### Math 160

The position function of an object moving along a straight line is given by s = f(t). The average velocity of the object over the time interval [a, b] is the average rate of change of f over [a, b]; its (instantaneous) velocity at t = a is the rate of change of f at a. A ball ...
89. ### calculus

Find the average rate of change of the function over the given interval. You must reduce and simplify your answer, if possible. a. f(x)=cot x, [pi/6, pi/2] b. f(theta)= -2 + cos (theta), [-pi, 0]
90. ### Math

Determine which function has the greater rate of change 1.The rates of change are equal. 2.The graph has a greater rate of change. 3.The table has a greater rate of change. 4.none of the above file:///C:/Users/SCHOOL/Pictures/math.JPG HELP ME UNDERSTAND THIS PLEASE??
91. ### Math

file:///C:/Users/SCHOOL/Pictures/math.JPG Determine which function has the greater rate of change 1.The rates of change are equal. 2.The graph has a greater rate of change. 3.The table has a greater rate of change.*** 4.none of the above Is this right?
92. ### college Algebra

If the average rate of change of g(x) from x = 1 to x = 5 is 17.5, and if the average rate of change of g(x) from x = 5 to x = 10 is 35, then what is the average rate of change of g(x) from x = 1 to x = 10?
93. ### MATH

which two points of a trignometric function will always give an average rate of change of 0?
94. ### math

which two points of a trignometric function will always give an average rate of change of 0?

96. ### Calculus

I have three questions I need help solving 1) A ball's position, in meters, as it travels every second is represented by the position function s(t) = 4.9t2 + 550. What is the velocity of the ball after 3 seconds? 2) The cost in dollars of producing x units of a particular ...
97. ### Calc

The question that I'm stuck on is this: "Let f(x,y)= x^(2)*ln(y). Find the average rage of change of f as you go from (3,1) to (1,2) and find the instantaneous rate of change of f as you leave the point (3,1) toward (2,1)." Any help would be appreciated. Thanks!
98. ### Math

The number of gallons of water remaining in a swimming pool t minutes after the drains are opened and the pool begins emptying is give given by the function f(x)=40t^2-3000t+40,000 gallons. Between 3 and 5 minutes after the drains were opened, the pool emptied at an average ...
99. ### pre-cal

g(x)=-4/x; x=-5, x=-5+h Determine the average rate of change of the function between the given values of the variable.
100. ### Math - Instantaneous and average rates of change

a) Describe a graph for which the average rate of change is equal to instantaneous rate of change for its entire domain. Describe a real life situation that this graph could represent. b) Describe a graph which the average rate of change between two points is equal to the ...