Question

Please Help!

Are the functions linear or nonlinear?
1. 72=x^3+y
2. y+1=5(x-9)
3. 7y+2x=12
4. 4y=24

Answer 1

solve each of the equations for y, so that you get the equation for a line.
1) y = -x^3 + 72
2) y = 5x - 46
3) y = (-2/7)x + (12/7)
4) y = 6

Answer 2

Okay! thanks