In this diagram the big square is divided into 7 congruent small squares and two congruent triangles. The area of the shaded square is 4sq cm. What is the area of the shaded triangle? PLS HELP. PLS TELL ME HOW YOU GOT THE ANSWER TOO!

(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)