Solve for x in the proportion.
= 
A. ?6
B. 3
C. ?3
D. 6
Answer: C
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Factor.9x2 - 48xy + 64y2
A. (3x - 8y)(3x + 8y) B. (9x + y)(x + 64y) C. (3x - 8y)2 D. (3x + 8y)2
The graph of a function is given. Decide whether it is even, odd, or neither.
A. even B. odd C. neither
First rewrite the quadratic function in standard form by completing the square, then find any x-intercepts and any y-intercepts.f(x) = -x2 + 17x - 72
A. x-intercepts: -8 and -9; y-intercept: 72 B. x-intercepts: 8 and -9; y-intercept: 17 C. No x-intercepts; y-intercept: -72 D. x-intercepts: 8 and 9; y-intercept: -72
Solve the system of equations (only real solutions) by the elimination method. Check your solutions.
A. {(0, 3), (0, -3), (-6, 3), (-6, -3)} B. {(0, 3), (0, -3), (6, 3), (-6, -3)} C. {(0, 3), (0, -3), (-6, 3), (6, -3)} D. {(0, 3), (0, -3), (6, 3), (6, -3)}