Question

If y varies directly as x, and y = 15 as x = -3, find y for the x-value of 6.

-30

-32

-34

-36

Answer 1

@Directrix

Answer 2

y = k*x where k is the constant of proportionality.

y = k*x
15 = k*(-3)
k = ?

What is k = ? @manny_9

Answer 3

-5?

Answer 4

Yes.

Answer 5

Build the equation

y = -5 * 6 where k = -5 and x = 6.

y = ?

Answer 6

-30

Answer 7

That is what I got. Correct.

Answer 8

Thanks can u check this http://prntscr.com/cswppv

Answer 9

Direct Variation is correct.

Inverse variation has a curved graph.

Answer 10

Thanks

Answer 11

You're welcome.