Find the coordinates of the vertex and the direction of opening of each parabola.y = -(x + 4)2 + 5
A. (5, -16) opens upward
B. (-5, 4) opens downward
C. (5, -4) opens upward
D. (-4, 5) opens downward
Answer: D
Mathematics
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Is the following correspondence a function?Domain: All students attending the University of OhioCorrespondence: Each student's teachersRange: A set of teachers
A. Yes B. No
Mathematics
Subtract.(-6x3 + 9x2 + 4) - (-5x3 + 2x - 5)
A. -11x3 + 9x2 + 2x - 1 B. -x6 + 9x4 - 2x2 + 9 C. -x3 + 9x2 - 2x + 9 D. -x3 + 9x2 + 2x - 1
Mathematics
The slope of the tangent line to the graph of the exponential function 
at the point (0, 1) is 
Estimate the slope to three decimal places.
What will be an ideal response?
Mathematics
Multiply and simplify. Write the answer as a mixed number if possible.7
? 3
A. 10
B. 23
C. 21
D. 63
Mathematics