The graph of a quadratic function is given. Choose the function's equation.
A. f(x) = -x2 + 3
B. f(x) = -x2 - 6x - 9
C. f(x) = -x2 - 3
D. f(x) = -x2 + 6x + 9
Answer: C
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The problem tells by what factor and direction the graph of the given function is to be stretched or compressed. Give an equation for the stretched or compressed graph.y = x2 - 3
compressed vertically by a factor of 2
A. y = 2x2 - 6
B. y = 
- 3
C. y = 
- 
D. y = 4x2 - 3
Solve the problem.A formula used by an engineer to determine the safe radius of a curve, R, when designing a road is: 
where ? is the superelevation of the road and V is the velocity (in feet per second) for which the curve is designed. If 
ft per sec, f = 0.1
and 
find R. Round to the nearest foot.
A. R = 1970 ft B. R = 1977 ft C. R = 1973 ft D. R = 1983 ft
Combine and simplify, if possible.-11
- 9
A. (-2x - 1)
B. -20
C. (-20x - 1)
D. -2
Use a Venn diagram to answer the question.A survey of 134 college students was done to find out what elective courses they were taking. Let A = the set of those taking art; B = the set of those taking basket weaving; and C = the set of those taking canoeing. The study revealed the following information:n(A) = 45; n(B) = 55; n(C) = 40; n(A ? B) = 12; n(A ? C) = 15; n(B ? C) = 23; n(A ? B ? C) = 2.How many students were not taking any of these electives?
A. 44 B. 52 C. 42 D. 10