HELPPP QUICK!! let f(x) = -.5(x-8)^2 - 2. what is the average rate of change for the quadratic function from x = -4 to x = 8

4. (10.03 mc) the equation of line cd is y = −2x − 2. write an equation of a line parallel to line cd in slope-intercept form that contains point (4, 5). (4 points) y = −2x + 13 y = negative 1 over 2 x + 7 y = negative 1 over 2 x + 3 − 2x − 3