Find the vertex.f(x) = 3x2 - 6x - 2
A. (-1, 5)
B. (5, -1)
C. (-5, 1)
D. (1, -5)
Answer: D
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Solve the problem.Find x so that the vectors v = i - xj and w = -4i - 3j are orthogonal.
A. - 
B. - 
C. 
D. 
Find the prime factorization of the number. Write the answer with exponents when repeated factors appear.175
A. 72 B. 25 ? 7 C. 52 ? 7 D. 25 ? 5
In a right triangle, find the length of the side not given. Let c represent the length of the hypotenuse. Give an answer to the nearest tenth if necessary.b = 7 yd, c = 14 yd
A. a = 7 yd B. a ? 12.1 yd C. a ? 9.9 yd D. a ? 4.6 yd
Find the x-intercepts of the polynomial function. State whether the graph crosses the x-axis, or touches the x-axis and turns around, at each intercept. f(x) = -x2(x + 3)(x2 + 1)
A. 0, touches the x-axis and turns around; -3, crosses the x-axis B. 0, touches the x-axis and turns around; 3, crosses the x-axis C. 0, touches the x-axis and turns around; -3, crosses the x-axis; -1, crosses the x-axis; 1, crosses the x-axis; D. 0, touches the x-axis and turns around; -3, crosses the x-axis; -1, touches the x-axis and turns around