Find the vertex of the parabola.f(x) = 2x2 + 16x + 33
A. (4, -1)
B. (1, -4)
C. (-4, 1)
D. (-1, 4)
Answer: C
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Solve the problem.A pantograph is a mechanical device that can be used to draw enlargements or reductions. The pantograph below has a fixed point O. If point P is moved over a picture, P' traces out the copy of the picture, what is the scale factor of the size transformation? Assume all of the points along the strips are the same distance apart.
A. 2 B. 1/3 C. 1/2 D. 3
Change the fraction or mixed number into an equivalent decimal. Use bar notation to write repeating decimals. 
A. 0.4375 B. 0.4475 C. 0.438 D. 0.3375
Write the vector v in the form ai + bj, given its magnitude 
and the angle ? it makes with the positive x-axis.
= 8, ? = 90°
A. v = 8i B. v = 8i + 8j C. v = 8j D. v = 8i - 8j
Determine whether the expressions are equivalent.11x + 3x, 13x
A. Yes B. No