Page 4 6. (14 points) Consider the quadratic function: y = -12 - 2r + 8. (a) (1 point) Will this parabola open upwards or downwards? (b) (1 point) Will this parabola have a maximum or a minimum? (c) (6 points) Find the r-intercepts using the quadratic formula. (d) (2 points) Find the y-intercept. (c) (4 points) Identify the vertex of this parabola