Question

Which equations show direct variation between a and b?

Choose all answers that are correct.

A.b=0.7a


B. b= 1/8a-3


C. 5 (1/a)=b


D. 1a=b

Answer 1

Direct variation: \(\sf y=kx\)

Answer 2

Which one of them is in the same format?

Answer 3

yes

Answer 4

One answer choice looks just like it.

Answer 5

direct variation is a line with y-interception of 0

Answer 6

A AND D?

Answer 7

my bad didn't mean to use caps

Answer 8

A is correct. Now

this is also direct variation:
\(\sf\Large k= \frac{y}{x}\)

Answer 9

And yes D is also correct.

Answer 10

so the answers are a and d

Answer 11

yup!

Answer 12

Thank you!

Answer 13

np :)