Use a graphing calculator to sketch the graph of the quadratic equation, and then give the coordinates for the x-intercepts (if they exist). a. (-7, 0); (-8, 0) c. (-7, 0); ( 8, 0) b. ( 7, 0); (-8, 0) d. ( 7, 0); ( 8, 0) Please select the best answer from the choices provided