A quadratic relation has the equation y= a(x - s )(x – t).
Find the value of a when (a) y = a(x - 2)(x + 6) and (3,5) is a point on the graph (b) the parabola has zeros of 4 and -2 and a y-intercept of 1 (c) the parabola has x-intercepts of 4 and -2 and a -intercept of -1 (d) the parabola has zeros of 5 and 0 and a minimum value of -10 (e) the parabola has x-intercepts of 5 and -3 and a maximum value of 6