Question

Need Help With Direct Variations?!?!?!?!?

Answer 1

If y varies directly as x, what is the value of y in these ordered pairs?
(4, 1) and (20, y)

Answer 2

ive never done this

Answer 3

Plan of Attack:
1. Plug the given values into the equation y = kx.
2.Solve for k.
3.Then replace k with its value in the equation y = kx.

Step-by-Step:

Start with our standard equation: y = kx

Insert our known values: 8 = k*12

Divide both sides by 12 to find k: 8/12 = k

2/3 = k

Next: Go back to y = kx and replace k with 2/3.

y = (2/3)x

Answer 4

I cant get the answer