The original equation was \(y = \dfrac{1}{2}(x+3)\)
another equation \(y = 2(x-2)\)
Table of values: 
Notice that in the first two equations \(-c\) appears to be the \(x\) intercept. That is the red line and the blue line above. When multiplied together the equation becomes a quadratic.
Tables and graphs are created using Desmos.com.