Are these linear functions or nonlinear functions, please help ive only gotten fake answers and im on a timed test i just need help yallll.

Are these linear functions or nonlinear functions please help ive only gotten fake answers and im on a timed test i just need help yallll class=

Respuesta :

Answer:

y = -4 + 2x is linear.

[tex]y=3-x^2[/tex] is not.

Step-by-step explanation:

An equation is linear if its graph forms a straight line.