Question

14) For y=-7, when x = -35, what is the constant of variation and what is the direct-variation equation?

Answer 1

If y varies directly with x, the constant of variation (k) can be found using the equation: y = kx, where k is equal to y/x.

In this case, when x = -35, y = -7, so k = y/x = -7/-35 = 1/5.

The direct-variation equation can be written as: y = (1/5)x.