Question

PLZ HELP The slope of the graph of a direct variation function is 4. What is the equation of the function? y = 4 x + 1 y = 1/4 x y = -4 x y = 4 x

Answer 1

d. y = 4 x

Explanation:

A direct variation

1. has no y-intercept

2. has a constant positive slope.

Out of

y = 4 x + 1 [has y-intercept of +1]

y = 1/4 x [direct variation with a slope of 1/4, not 4]

y = -4 x [has a negative slope]

y = 4 x [direct variation with slope of 4]

Answer 2

y = 4x

Explanation:

A direct variation is written in the form

y = kx where k is the constant of variation ( or the slope)

y = 4x