Solve the problem.A projectile is fired straight upward. The function
describes the height of the projectile, f(t), in feet, t seconds after firing. Factor the polynomial
and write the function in factored form. Use the factored form of the function to find f(2).
A. f(t) = t(-16t + 40); 48 ft
B. f(t) = -8t(2t - 5); 16 ft
C. f(t) = t(-16t + 40); 16 ft
D. f(t) = -8t(2t - 5); 48 ft
Answer: B
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Find the vertex of the parabola.y = x2 - 12x + 36
A. (6, -6) B. (6, 0) C. (6, 6) D. (6, 36)
Factor by grouping.24 - 10x + x2
A. (x - 6)(x + 4) B. (x - 6)(x - 4) C. (x + 6)(x - 4) D. (x + 6)(x + 4)
Perform the indicated operations. Express the answer as a single polynomial in standard form.-3x5(5x5 - 5x3 + 7)
A. -15x10 - 5x3 + 7 B. -15x10 + 15x8 - 21x5 C. -15x10 + 15x8 D. -15x5 + 15x3 - 21
Find the equation in standard form of the parabola described.The vertex has coordinates (9, -3), and the focus has coordinates (9, -7).
A. (x - 9)2 = 16(y + 3) B. (y - 3)2 = -8(x + 9) C. (y - 3)2 = 8(x + 9) D. (x - 9)2 = -16(y + 3)