Question

Select whether each function is linear or nonlinear.



Linear

Nonlinear

y=9(2x)


y=(5x+3)2


y=8x2


y=5x−3


y=3x2+2x−1

Answer 1

y=9(2x)

y = 18x

Linear

y=(5x+3)2

y = 10x + 6

Linear

y=8x2

y = 8x²

Non-linear

y=5x−3

y = 5x - 3

Linear

y=3x2+2x−1

y = 3x² + 2x - 1

Non-linear