Transformation of Direct and Indirect Variations

Is this a direct variation?
y=2x

• yes

• no

Is the given table a direct variation? If so, what is the constant of proportionality?

• Yes; 8

• Yes; 16

• Yes; 24

• No

Which of the following represents indirect variation?

• y = kx

• y = k/x

• y = x/k

• y = mx + b

Assume y varies inversely with x. If x=7 when y=4, what is y when x=2 ?

• 4

• 14 

• 7

• 28

The graph of r(x) is a​ ​ (a)   ​by the graph of f(x) by a factor of ​ ​ (b)   .

• horizontal stretch

• horizontal shrink

• vertical stretch

• vertical shrink

• 1/3

• 3

• 2/3

• A

• B

• C

• D

The image is an example of the graph of a(n)

• direct variation

• inverse variation

• neither

• both

The graph of g(x) is a
(a)   translation ​ (b)   units ​ ​ (c)   the graph.

• vertical

• 2

• 1

• up

• down

• left

• right

Is the given table a direct variation? If so, what is the constant of proportionality?

• Yes; 1/4

• Yes; 4

• Yes; 1/2

• No

Tags

CCSS.7.RP.A.2B

Does the relationship represent direct variation?

• Yes

• No