What is the equation of the non-proportional relationship given by the table below? x y
3 76
6 70
9 64
12 58
15 52
y=2x+76
y=-2x+82
y=-2x-76
y=2x-82

Can someone me find the original price? the discount is 5% and the sale price is $68.40

Amass weighing 16 pounds stretches a spring 8/3 feet. the mass is initially released from rest from a point 2 feet below the equilibrium position, and the subsequent motion takes place in a medium that offers a damping force that is numerically equal to 1/2 the instantaneous velocity. find the equation of motion if the mass is driven by an external force equal to f(t)=cos(2t).

What are linear equations? could'ya explain too me, ? ! and how do you see what graph is a proportional relationship?