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
Mathematics
Identify the vertex of the parabola.f(x) = (x + 6)2
A. 
B. 
C. 
D. 
Mathematics
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
Mathematics
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