1. For the data in the table does y vary directly with x? If it does write an equation for the direct variation.
x|y
8|28
16|56
20|70
a. yes;y=5x
b. yes;y=x+20
c. yes;y=3.5x**
d. no; y doesn't vary directly with x
2. For the data in the table does y vary directly with x? If it does write an equation for the direct variation.
x|y
40|32
28|16
16|12
a. no;y does not vary directly with x**
b. yes; y=2x
c. yes; y=1.5x
d. yes; y=0.2x
Please answer whenever you get the chance. I really need help on this. thank you :)
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basketball&batman
1) C
2) A
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Anonymous
All you have to do is plug in the value for x in each of those equation and see if you get the correct y value according to your table. For example,
y=3.5x
y=3.5(8)=28
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Anonymous
Thank you! You're a life saver, helpful Internet stranger! *virtual hug*
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basketball&batman
Totally makes sense. Good job Jiskha.
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Kya Rose
anwsers????
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jackie
whats the whole test answers
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????????
X y
10 12
15 18
20 24
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Lit kit
I took one for u guys.
Here are the answers. Trust me
A
D
D
D
B
B
D
C
B
C
B
A
A
D
B
C
C
C
C
A
A
Last 2 on u guys. Best of luck
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Arno
sorry if I miss one, but this should get you a good grade.
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Arno
1.C
2.D
3.D
4.D
5.D
6.A
7.C
8.B
9.B
10.A
11.B
12.A
13.B
14.B
15.A
16.B
17.B
18.C
19.C
20.A,B,E
21.D
22.C
23.C
24.D
25. On your own
26. On your own
I just took the quiz and got an 11/26 using Arno's answers, these are the right answers. Have fun with your 100 (Unless you miss the last two)
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I give correct answers
arno is right
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Anonymous
“i give correct answers” is right i got the same score as he did from aron’s and i checked the questions
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Anonymous
Lesson 10: Linear Functions Unit Test
Algebra 1 A Unit 6: Linear Functions
(Connections Academy)
1.a yes: y=1.2x
2.d no; y does not vary directly with x
3.d graph going from (-10, -5) to (10, 3)
4.d graph going from (-10, -3) to (10,9)
5.b 46/1; your car travels 46 miles in 1 hour.
6. c 1/5
7. d -3
8.c undefined
9.d y-2=3(x-5)
10.c y+6=-5/8(x+10)
11.b y-21=7(x-3)
12.b graph with line going up and down over the point -3
13.a 2x+3y=21
14.d y=5x+4
15.b perpendicular
16.c neither
17.c y-8=-2/5(x+7)
18.d the functions have the same shape. the y-intercept of y=|x| is 0, and the y-intercept of the second function is -9
19.a the graphs have the same shape. the y-intercept of y=|x| is 0, and the y-intercept of the second graph is 5
20.a the graph with a v shape where the bottom of the v is -5 on the y-axis
21.b the graph with a v shape where the bottom of the v is 4 on the x-axis
22.a positive correlation
23. short answer
24. short answer
I don't know if the questions get switched for different people so here are the actual answers (not just the letter I see correct on my screen)
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Extravaganza
for numbers 23 and 24 the short answers are just little essays to answer the question not actually the answer btw. hope this helped cause I struggle in math like plenty others.
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Extravaganza
1. For the data in the table, does y vary directly with x? If it does, write an equation for the direct variation.
X y
8 28
16 56
20 70
yes; y = 5x
yes; y = x + 20
*****yes; y = 3.5x
no; y does not vary directly with x
2. For the data in the table, does y vary directly with x? If it does, write an equation for the direct variation.
X y
40 32
28 16
16 12
******no; y does not vary directly with x
yes; y = 2x
yes; y = 1.5x
yes; y = 0.2x
3. Match the equation with its graph.
Answer is D
4. Match the equation with its graph.
6x + 8y = –3
Answer is A
5. The table shows the number of miles driven over time.
A table with the first column labeled 'Time in hours' containing the values 4, 6, 8, 10 from top to bottom is shown. The second column is labeled 'Distance in miles' and contains the corresponding values 204, 306, 408, 510 from top to bottom.
Express the relationship between distance and time in simplified form as a unit rate. Determine which statement correctly interprets this relationship.
*****Start Fraction 51 over 1 End Fraction; your car travels 51 miles every 1 hour.
204; your car travels 204 miles.
Start Fraction 1 over 51 End Fraction; your car travels 51 miles every 1 hour.
10; your car travels for 10 hours.
6. Find the slope of the line.
5
–5
*****1/5
-1/5
7. What is the slope of the line that passes through the pair of points? (7, 2), and (9, 6)
–1
–2
1
***** 2
1 /1 point
8. What is the slope of the line that passes through the pair of points (3, –4), and (5, –7)? (1 point)
2/3
-2/3
*****-3/2
3/2
9. What is the slope of the line?
A coordinate graph is shown. A horizontal line passes through 3 on the y-axis.
*****0
1
Infinity
Undefined
10. Write an equation in point-slope form for the line through the given point with the given slope.
(8, 3); m = 5
y + 3 = 5(x – 8)
y + 3 = 5x – 8
***** y – 3 = 5(x – 8)
y – 3 = 5(x + 8)
11. Write an equation in point-slope form for the line through the given point with the given slope.
(–3, –5); m = -2/5
*****y + 5 = -2/5(x + 3)
y + 5 = 9-2/5) x – 3
y – 5 = -2/5(x + 3)
y – 5 = -2/5(x – 3)
12. The table shows the height of a plant as it grows. Which equation in point-slope form gives the plant’s height at any time?
A table is shown with the first column labeled Time in months and contains the values 3, 5, 7, 9 from top to bottom. The second column is labeled Plant height in centimeters with the corresponding values of 21, 35, 49, 63 from top to bottom.
y – 21 = 7/2(x – 3)
******y – 21 = 7(x – 3)
) y – 3 = 7/2(x – 21)
The relationship is nonlinear.
13. What is the graph of the equation?
x = –4
a.
b.***
c.
d.
14. Write y = (-5/8) x + 3 in standard form using integers. (1 point)
5x + 8y = –24
***5x + 8y = 24
5x – 8y = 24
–5x + 8y = 24
15. Write an equation for the line that is parallel to the given line and passes through the given point.
y = 5x + 10; (2, 14)
a. y =1/5 x + 4
***y = 5x + 4
y = –1/5– 4
y = 5x – 68
16. Tell whether the lines for each pair of equations are parallel, perpendicular, or neither.
y = –2x + 4
–5x + 10y = 5
Parallel
***perpendicular
Neither
17. Tell whether the lines for each pair of equations are parallel, perpendicular, or neither.
y =-1/4x + 8
–2x + 8y = 4
Parallel
Perpendicular
*** Neither
18. Write the equation of a line that is perpendicular to the given line and that passes through the given point.
Y-4=5/2(x+3) ;(-3, 4)
Y+4=-2/5(x-3)
y-3+-2/5(x+4)
****y-4=-2/5(x+3)
Y+4=2/5(x-3)
19. Below are the functions of y = |x| and y = |x| – 3. How are the functions related?
***The functions have the same shape. The y-intercept of y = |x| is 0, and the y-intercept of the second function is –3.
The functions have the same y-intercept. The second function is steeper than y = |x|.
The two functions are the same.
The functions have the same shape. The y-intercept of y = |x| is 0, and the y-intercept of the second function is 3.
20. Graph y = |x+4|. (1 point)
a.
***b.
c.
d.
21. Graph y =[x]-3. (1 point)
a.
***b.
c.
d.
22. Graph y = |x – 4|. (1 point)
absolute value graph
**absolute value graph
absolute value graph
absolute value graph
23. Which type of correlation is suggested by the scatter plot?
positive correlation
Equal correlation
Negative correlation
*** no correlation
24 do on your own
25 do on your own
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Helper
I got a 19/22 not counting #s 23/24 this is the newest test versión 2019 all the answers below are correct
A
D
D
D
A
A
B
C
B
C
C
A
A
B
B
C
C
D
C
A
B
A
23/24 its just a short essay 24 is y=0.11(22)+4.45+6.96 the playera soul d be able to fin 23 leg-presa
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Jade
so are these the correct answers? because there are 3 different test answers, and idk which one is correct.
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Lilly
what is an answer for 23 nd 24 need help
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ihuewofhd3u
Yeah there are so many test answers
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Randah Sharaf
Yet not all are the right answers
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Randah
1- c
2- d
3- d
4- d
5- d
6- a
7- c
8- b
9- d
10- a
11- d
12- a
13- c
14- a
15- b
16- d
17- b
18- c
19- c
20- a,b,e
21- d
22- a
23- c
24- d
25,26- your response
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unit 6 test
This is confusing
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Sum random
the test keeps changing so im really not sure if unit 6 test is right or not tbh,,,
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lesmochii
i got 11/22 or sum like dat each time i checked the answers with each of the answers, so basicaly seach for the answers on a dif site or just guess ig
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EliTheTrap
EliTheTrap whats the answers
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help lol
I go to the minnisota connexus school and none of these are right
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MN
wait so what are the correct answers bc i didnt do this whole unit so now im stuck...
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Wheels On The Bus
whats your name ill pm you
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dca
I am so confused. What are the real answers. Just in case there are diffferent test , here is the first question for mine. 1. For the data in the table, does y vary directly with x? If it does, write an equation for the direct variation. X Y
8 | 13
16 | 26
24 | 39
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Need help badly
the semester is ending answers asap!
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Me.
yes me i need the semester exam too
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david
any one have the answers to the semester exam
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Who.KNows
I just want to say it, every math test changes every couple weeks out with like 3 diff questions. So don't trust the people who gave answers with just the letters. If they have a good full answer like @Helper than see if ur questions are the same as theirs. BAI
Hello. My algebra teacher gave me this worksheet last week and everyone had to bring it yesterday and I haven't done it yet. Can someone please help me. He said Friday is the last day or he's going to take away some points. I've
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Density Calculations Density is the mass of an object per unit volume. In this lab, you will be gathering data on the mass and volumes of objects, calculating their densities, and using their density to identify the object. [Block
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Find the next three terms in the sequence? -6,5,16,17 A 38,49,60*** B 37,47,57 C 36,45,54 D 36,46,57 3 What are the first four terms of the sequence represented by the expression n(n-1)-5? A -7,-5,-3,1 B -5,-10,-15,-20 C 0,2,6,12
Would someone please check my answers? If x and y vary directly, as x decreases, what happens to the value of y? It decreases also If x and y vary inversely, as y increases, what happens to the value of x? It decreases If x and y
1. for the data in the table, does y vary directly with x? if it does write an equation for the direct variation. 10 | 12 15 | 18 20 | 24 A. yes; y = 1.2x B. yes; y = 2x C. yes; y = x + 1 D. no; y does not vary directly with x 2.
The table shows the outputs, y, for different inputs, x: Input (x) 13 5 7 Output (y) 8 6 5 4 Part A: Do the data in this table represent a function? Justify your answer. (3 points) Part B: Compare the data in the table with the
i know that slope is rise over run, but how do i find the slope of a line with data points with a positive correlation that vary on the line? because there are points that the line doesn't go through. the data points represent