Determine whether or not the graph represents a function.
A. function
B. not a function
Answer: A
Mathematics
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Find the axis of symmetry of the quadratic function.f(x) = -x2 - 14x - 9
A. x = -14 B. x = 40 C. x = -7 D. x = 7
Mathematics
Solve the absolute value inequality. Write your answer in interval notation.|8x| ? 5
A. 
B. 
C. 
D. 
Mathematics
Evaluate the expression.(g ? f)(c) when f(x) = -3x + 4 and g(x) = 6x + 4.
A. -18c + 16 B. 18c + 28 C. -18c - 20 D. -18c + 28
Mathematics
Establish the identity.
= cos x + cot x
What will be an ideal response?
Mathematics