Lesson 10: Linear Functions Unit Test

Question

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

Answer 1

I just want my answers checked

Answer 2

Please

Answer 3

Well I just need help with this one question. 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

yes; y=5x
yes; y = 10x
yes; y = 1.625x
no; y des not vary directly with x

Answer 4

What did u get on the test?

Answer 5

A
D
A
C
C
A
B
D
C
B
A
A
B
C
D
A
B
D
C
A
A
C
D
B
all answers 100% on Connexus I promise <3 ^w^