Question

If y varies directly with x, and If y = 4 when x = 12, how do you find y when x = -24?

Answer 1

Answer:

Step-by-step explanation:

y varies directly with x   --->   y = kx.

4 = 12k   --->   k = 1 / 3   --->   y = x / 3.

x = - 24   --->   y = - 24 / 3 = - 8.