Pick a variable to manipulate (the independent variable.) summarize what you changed and what happened in the table below:

A. f(x) = (4x+5)(x-3)

              B. Since +4 > 0, the graph opens up

             as always, the vertex is at x = -b/2a = 7/8

             C. plot the vertex at (7/8, -18 1/16)

           pick a point or two, say at x=0,1,2 and plot them. then draw a curve           through them.

Step-by-step explanation: