The area of a trapezoid is (a+b)/2 * h a is the length of the small base which is the one on the top and is 4cm b is the length of the big base which is the one at the bottom and is 4 + 3 + 3 = 10cm h is the height which is 7cm So the area is (4+10)/2 * 7 A= 14/2 * 7 A= 7 * 7 A= 49 cm^2
So the solution would be (1,-2). Remember you can always validate that the solution is correct by plugging it into both equations. But this is the same as the first equation, y=3x-5. Since they are the SAME line they will have infinite solutions.
