Question

What is the direct linear variation equation for the relationship?

y varies directly with x and y = 4 when x = 12.

A.
y = x – 8

B.
y = x + 8

C.
y = 3x

D.
Equation y equals x times begin fraction one over three end fraction

Answer 1

hint: a direct variation is in the form y = kx

so, if y = 4 and x = 12...

4 = k(12)

what is k equal to?

Answer 2

would k be equal to 3

Answer 3

aka c

Answer 4

nope, think carefully

Answer 5

__ * 12 = 4

what goes into the blank?

Answer 6

is that a divide sigh

Answer 7

* means multiply

Answer 8

what times 12 equals 4?

Answer 9

i do not know

Answer 10

hint:

4 = 12k

start by dividing both sides by 12

Answer 11

0.3