Find all values of x for the given function where the tangent line is horizontal.f(x) = 
A. ± 
B. ± 
C. 0
D. 0, ± 
Answer: A
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The figure below is a square ABCD with center O. (M, N, P, and Q are the midpoints of the sides.)
Which of the following reflections is not a symmetry of the square?
A. the reflection with axis the line passing through P and Q B. the reflection with axis the line passing through A and C C. the reflection with axis the line passing through A and B D. the reflection with axis the line passing through M and N E. all of these are symmetries of the square.
Simplify the expression.(-2x5y)2
A. -4x5y2 B. (-2)2x7y2 C. -4x5y D. (-2)2x10y2
Determine whether the given function is one-to-one. If it is one-to-one, find a formula for the inverse.f(x) = 
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
D. f-1(x) = 
Write the statement as an inequality.z is less than or equal to 8
A. z ? 8 B. z = 8 C. z < 8 D. z > 8