Is the following correspondence a function??
A. Yes
B. No
Answer: B
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Solve the problem.John Lee's savings account has a balance of $1509. After 9 years, what will the amount of interest be at 6% compounded annually? Round to the nearest dollar.
A. $1031 B. $1045 C. $1040 D. $90
Graph the parabola. Identify the vertex, axis, domain and range.x = (y - 5)2 + 2
A. Vertex: (2, 5); Axis : y = 5;
Domain: [2, ?); Range: (-?, ?)
B. Vertex: (2, 5); Axis : y = 5;
Domain: (-?, 2]; Range: (-?, ?)
C. Vertex: (1, -1); Axis: x = 5;
Domain: (-?, ?); Range: (-?, 2]
D. Vertex: (-1, 1); Axis: x = 5;
Domain: (-?, ?); Range: [2, ?)
Solve.A section of roller coaster track has the dimensions shown in the diagram. Find the grade of the track, which is the slope written as a percent. 
A. 45% B. 11.6% C. 40% D. 3%
For the given pair of functions, find the requested function.f(x) = x2 - 9 and g(x) = 4x + 4; (g ? f)(x).
A. x2 - 4x - 13 B. 16x2 + 8x - 4 C. x2 + 4x - 5 D. 4x2 - 32