Use a graphing calculator to graph the polynomial and use the graph to estimate its range.3x2 - 30x - 63
A. (-?, -5]
B. [63, ?)
C. (-?, ?)
D. [-138, ?)
Answer: D
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Factor.8x2y2 - 31xy - 45
A. (8xy - 5)(xy + 9) B. (8x + 9y)(x - 5y) C. (8xy + 5)(xy - 9) D. (8xy + 9)(xy - 5)
Solve the problem.The curve y = tan x crosses the line y = 3x between x = 0 and x = 
. Use Newton's method to find where the line and the curve cross. (Round your answer to two decimal places.)
What will be an ideal response?
Determine whether the equation has no solution, one solution, or infinitely many solutions.10k - 69 = 5(2k - 15)
A. Infinitely many solutions B. No solutions C. One solution
Use the graph of the function f(x) to locate the local extrema and identify the intervals where the function is concave up and concave down.
A. Local minimum at x = +1; local maximum at x = -1; concave down on (0, ?); concave up on (-?, 0) B. Local minimum at x = +1; local maximum at x = -1; concave up on (0, ?); concave down on (-?, 0) C. Local minimum at x = +1; local maximum at x = -1; concave up on (-?, ?) D. Local minimum at x = +1; local maximum at x = -1; concave down on (-?, ?)