Question

I need help one last time.

Here are the answer choices.


Y = 72

Y = 16

Y = 32

Y = 1

Answer 1

Answer:

y = 32

Solving Way #1:

    This way uses the "tip" they give us of finding the relation between the first two values and then applying it to the second x.

    k = $\frac{y}{x}$

    2 = $\frac{16}{8}$

        -

     y = kx

     y = (2)(16)

     y = 32

Solving Way #2:

    Since they vary directly which each other, we can set up a proportion to solve. I have y values on the top and x values on the bottom.

    $\frac{16}{8} =\frac{y}{16}$

    256 = 8y

    32 = y

    y = 32

     Either way, when x is 16 y is 32.