Factor completely.2y2 - 8y - 90
A. (y + 5)(2y - 18)
B. (2y + 10)(y - 9)
C. 2(y2 - 4y - 45)
D. 2(y + 5)(y - 9)
Answer: D
Mathematics
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Evaluate the function.Find f(k - 1) when f(x) = 2x2 + 2x + 5
A. f(k - 1) = 2k2 - 2k + 5 B. f(k - 1) = -2k2 + 2k + 5 C. f(k - 1) = 2k2 + 12k + 9 D. f(k - 1) = 2k2 - 2k + 9
Mathematics
Evaluate.log5 519
A. 5 B. 18 C. 19 D. 20
Mathematics
Solve the problem.Suppose that the function y = f(x) is increasing on the interval (2, 5). Over what interval is the graph of 
increasing?
A. (11, 14) B. (18 , 45) C. (-7, -4) D. (2, 5)
Mathematics
Determine whether the statement is true or false.The graph of 
- 
= 1 is a horizontal ellipse.
A. True B. False
Mathematics