Use the x-intercepts to find the intervals on which the graph of f is above and below the x-axis.f(x) = (x - 3)3
A. above the x-axis: no intervals
below the x-axis: (-?, 3), (3, ?)
B. above the x-axis: (-?, 3), (3, ?)
below the x-axis: no intervals
C. above the x-axis: (-?, 3)
below the x-axis: (3, ?)
D. above the x-axis: (3, ?)
below the x-axis: (-?, 3)
Answer: D
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A. 232; two unequal real solutions B. -104; two complex imaginary solutions C. 0; one real solution
Find the approximate equation of the line that has the given slope and contains the given point. Write the equation in slope-intercept form. Round the constant term to two decimal places if necessary.m = -3.5, (-4.4, 7.4)
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Find f such that the given conditions are satisfied.f'(x) = x
, f(0) = 6
A. f(x) = 
+ 6
B. f(x) = 
+ 6
C. f(x) = 
+ 6
D. f(x) = 
+ 6
Find the indicated angle.Identify the pair or pairs of supplementary angles.
A. ?ABE and ?DBF B. ?ABD and ?EBF C. There are none. D. ?ABE and ?ABD; ?ABE and ?EBF; ?DBF and ?EBF; ?DBF and ?ABD