Determine whether the relation is a function.{(-1, 3), (1, 7), (6, 8), (8, 2), (11, 7)}

A. Yes
B. No


Answer: A

Mathematics

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Convert to a polar equation.x2 + 4y2 = 4

A. 4 cos2? + sin2? = 4r B. cos2? + 4 sin2? = 4r C. r2(4 cos2? + sin2?) = 4 D. r2(cos2? + 4 sin2?) = 4

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Identify the vertex of the parabola.f(x) = (x + 6)2

A.
B.
C.
D.

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Solve the exponential equation and approximate the result, correct to three decimal places.4x = 21

A. 2.196 B. 5.250 C. 0.455 D. 1.658

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Solve the problem.A rock is propelled upward from the top of a building 100 feet tall at an initial velocity of 72 feet per second. The function that describes the height of the rocket in terms of time t is  Determine the maximum height that the rock reaches.

A. 201 ft B. 161 ft C. 214 ft D. 181 ft

Mathematics