how can you find the unit rate or constant of proportionality for a realationship represented in a graph?

Graph the system of equations. {6x−4y=−244x−8y=−32 use the line tool to graph the lines.

When you dilate a figure with a scale factor of 1/2, what will the dilated figure look like?                                                                                           a: the dilated figure will have side lengths that are half the length of the original side lengths.                                                                          b: the angles in the dilated figure will be half the measure of the original figure.                                                                                c: the dilated figure will have side lengths twice the length of the original.

Astereo system is marked down from 450 to 382.50 what is the discount rate