12.

. Question 12 0/1 pt 9 2 0 Details Find the average rate of change of f(x) = 2x2 - 6 on the interval [1, a]. Your answer will be an expression involving a. Question Help: Message instructor0 Question 13 v | l l Eon pt '0 2 (D Details A gardener has 960 feet of fencing to fence in a rectangular garden. One side of the garden is bordered by a river and so it does not need any fencing. I'IVII' @ What dimensions would guarantee that the garden has the greatest possible area? shorter side: [:] ft (feet) longer side: C] ft (feet) greatest possible area: C it2 (square-feet) 0/1 pt 5 2 0 Details 2hrs12mins X .Question 14 Write an expression in factored form for the polynomial of least possible degree graphed below. 8+ 6 U uit -5 -4 -3 -2 -1 2 3 4 -1 -2 -3 -42hrs12mins X A uit -5 -4 -3 -2 -1 2 3 4 -1 -2 -3 -4 5. -6 -8+ Q f(a) =0 Question 18 v I ' > B 0/1 pt '0 2 (D Details Divide. p3 + 2p2 7 16127 27 p + 4 A) The quotient is E B) The remainder is C] C) Express answer in the form: p3 + 2122 16p 27 p+4 =%i D) "Clear Fractions" in the answer in part C to get another form: dividend : (divisor) (quotient) + remainder : quotient + divisor divisor dividend remainder