In triangle abc , the length of ab is 3 cm and the length of bc is 7 cm. triangle abc will be dilated with the center at the origin to create a’ b’ c’. if image of point a (-3,5) after the dilation is a’ (-12,20) what is the length of b’c’ ?

(05.03 mc) part a: explain why the x-coordinates of the points where the graphs of the equations y = 4x and y = 2x−2 intersect are the solutions of the equation 4x = 2x−2. (4 points) part b: make tables to find the solution to 4x = 2x−2. take the integer values of x between −3 and 3. (4 points) part c: how can you solve the equation 4x = 2x−2 graphically? (2 points)