please explain

(1) (10 pts) Consider the accumulation function F(x) = / h(t) dt on the interval [-4, 5). The graph of the integrand h(t) is given below on the interval [-4.5). (a) Which of the following 1 = h(t) describes F(4)? OF(4) 0 5 O Not enough evidence -1 to justify any of the descriptions. Area = 8 (b) Evaluate F(5). F (5) = (c) Determine the interval(s) of the domain on which F is decreasing. F decreasing : (d) Determine the r-value at which F achieves its maximum. T (e) Determine the z-value at which dF da achieves its maximum