Use the vertical line test to determine if y is a function of x.
A. Function
B. Not a function
Answer: B
Mathematics
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Find the greatest common factor of the numbers in the group.30, 36
A. 1 B. 6 C. 2 D. 3
Mathematics
Use a graphing calculator to sketch the graph of the quadratic equation, and then give the coordinates for the x-intercepts (if they exist).y = -x2 + 14x - 45
A. (-5, 0); (9, 0) B. (5, 0); (9, 0) C. (5, 0); (-9, 0) D. (-5, 0); (-9, 0)
Mathematics
Use reference angles to find the exact value of the expression. Do not use a calculator.tan 
A. 0 B. 1 C. -1 D. undefined
Mathematics
Find the missing angle in the triangle.Two angles are 12° and 59°.
A. 289° B. 71° C. 19° D. 109°
Mathematics