# Brief Calculus

posted by .

Calculate the average rate of change of the given function over the given interval. Where appropriate, specify the units of measurement.
f(x) = 1/x;[2, 7]
I used the f(b)-f(a)/b-a and I got -.071 and it said I was wrong could you please help me find my error?

WROK:
y1= 1/x (put this for my y-value in my calculator
then (y1(7)-y1(2))/(7-2) which equals -.071

• Brief Calculus -

f(2) = 1/2
f(7) = 1/7

avg rate of change = (1/7 - 1/2)/(7-2)
= (-5/14)/5)
= -1/14

don't go with decimals, they are not accurate,
stay with fractions for exact answers.

• Brief Calculus -

thank you apparently that is all I had to do=)

## Similar Questions

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 …
2. ### 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?
3. ### 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 …
4. ### 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 …
5. ### 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]
6. ### 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.
7. ### math

Calculate the average rate of change over the given interval of the given function. f (x) = x3, from x = 8 to x = 9
8. ### math

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

The concentration C of a chemical in the bloodstream 't' hours after injection into muscle tissue is given by: C=(3t^2+t)/(t^3+50) where t≥0 What is the rate of change over the interval [0,4]?
10. ### 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 …

More Similar Questions