Use the vertex formula to find the vertex of the quadratic function.f(x) = x2 + 12x - 1
A. (12, 287)
B. (6, 107)
C. (-6, -37)
D. (-6, -109)
Answer: C
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Determine if the point satisfies the inequality.x - y > -4; (-1, 3)
A. Yes B. No
Use the distributive property to perform the calculation.5 ? 19
A. 5 ? 19 = 5(20 - 1) = 100 - 5 = 95 B. 5 ? 19 = 5(20 - 1) = 100 - 5 = 105 C. 5 ? 19 = 5(20 - 1) = 100 - 1 = 99 D. 5 ? 19 = 5(20 - 1) = 100 - 20 = 80
Solve the problem.An experimental model for a suspension bridge is built in the shape of a parabolic arch. In one section, cable runs from the top of one tower down to the roadway, just touching it there, and up again to the top of a second tower. The towers are both 12.25 inches tall and stand 70 inches apart. Find the vertical distance from the roadway to the cable at a point on the road 14 inches from the lowest point of the cable.
A. 2.16 in. B. 1.76 in. C. 7.84 in. D. 1.96 in.
Perform the indicated operation.(a - 11b)(-3a - 11b)
A. -3a2 + 22ab + 121b2 B. -3a2 + 22ab + 22b2 C. a2 + 22ab + 121b2 D. a2 + 22ab + 22b2