Answer:
a. y = 3x² + 9x +6
d. y = x(3x + 10)
Step-by-step explanation:
Most equations that have a squared variable are going to be nonlinear.
If you distribute the x in the d equation you get this: y = 3x² + 10x
Choices b, c, and e are going to be linear because there is only one variable, and those variables do not have exponents.
