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

Question

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

darkknight · Answer

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

jhonyy9 · Answer

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

darkknight · Answer

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