Answer:
-8 = x
Step-by-step explanation:
"y varies directly as x" translates into y = kx, where k is the constant of proportionality.
We are told that when x = 16, y = 4. Thus, 4 = k(16), and k = 1/4.
Then y = (1/4)x.
If y = -2, what is x? -2 = (1/4)x.
Multiplying both sides by 4 eliminates the fraction:
-8 = x
