5-20. Graph y = x2 8x +7 and fully describe it. Hint 1: Make a table. Use integers from -1 to 9 for your inputs. Hint 2: The a-intercepts are where the graph intersects the x-axis, or where y = 0. Hint 3: The y-intercept is where the graph intersects the y-axis, or where x = 0. VHint 4: The vertex is the lowest or highest point on the parabola.