Question

5)
Which equation represents a linear function?
A) y = |x|
B) y = x2
C) y = -3x3
D) y =
1
4
x

Answer 1

is D) y = 1/4)x because that is the only linear function. The rest are not because they are to a nth root that is not equal to 1. The exponent for x has to be 1 for linear

Answer 2

@darkknight what about choice A). ? just bc this is without exponent or can saying that is with exponent 1

Answer 3

linear functions are one-to-one. This means that if you draw a horizontal line on the graph and move it around, it will only hit the function at one spot. Therefore a is not correct @jhonyy9