Graph the parabola and label the vertex. Find the y-intercept.y = 2(x - 1)2 + 
A. vertex 
, y-intercept (0, -2.5)
B. vertex 
, y-intercept (0, -6.5)
C. vertex 
, y-intercept (0, 6.5)
D. vertex 
, y-intercept (0, 6.5)
Answer: D
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Solve the problem.The profit P for selling x items is given by the equation P(x) = 2x - 500. Express the sales amount x as a function of the profit P.
Fill in the blank(s) with the appropriate word(s).
Find the domain of the logarithmic function.f(x) = log8(x2 - 10x + 25)
A. (-?, 5) ? (5, ?) B. (5, ?) C. (-?, 0) ? (0, ?) D. (-5, ?)
Decide if the answer is reasonable or unreasonable by rounding the numbers and estimating the answer. If the answer is not reasonable, find the correct answer.596.5 ÷ 3.3 = 18.08
A. Unreasonable, should be 180.8 B. Reasonable C. Unreasonable, should be 1808 D. Unreasonable, should be 1.808
Suppose the point (2, 4) is on the graph of y = f(x). Find a point on the graph of the given function.The reflection of the graph of y = f(x) across the x-axis
A. (2, -4) B. (-2, -4) C. (-2, 4) D. (2, 4)