If y varies directly as x, find a linear function which relates them.
-y = 0.2 when x = 1.6
A) f(x) = 8x
B) f(x) = 0.125x
C) f(x) = 0.2x
D) f(x) = x - 1.4

Question

Quizplus · Accepted Answer

When y varies directly as x, the relationship can be described by the equation y = kx, where k is the constant of variation. Given y = 0.2 when x = 1.6, we can find k by substituting these values into the equation: 0.2 = k(1.6). Solving for k gives k = 0.2 / 1.6 = 0.125. Therefore, the linear function that relates them is f(x) = 0.125x.

If Y Varies Directly as X, Find a Linear Function