Factor.81 - 64x2
A. (9 - 8x)2
B. (9 + 8x)2
C. (9 + 8x)(9 - 8x)
D. 81 - 64x2
Answer: C
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A. 12 B. -4 C. -12 D. 4
Solve the problem.The area of the rectangle below is 
Find another expression for this area by finding the sum of the areas of the smaller rectangles.
A. 3z2 + 31z + 56 B. 3z2 + 24z +56 C. 3z2 +31z D. 3z2 + 7z + 56
Use a grapher to find the vertex or x-intercepts, as indicated, of the quadratic function.Find the vertex of the function f(x) = -0.2x2 + 0.7x - 6.9.
A. (1.75, -7.5125) B. (1.75, -6.2875) C. (1.75, -6.9) D. (-1.75, 6.2875)
Write a formula for the function described.Function F computes the number of square feet in x square yards.
A. F(x) = 
B. F(x) = 9 - x
C. F(x) = 
D. F(x) = 9x