Find the root if it is a real number.
A. 5
B. 25
C. -5
D. Not a real number
Answer: C
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Use the method of successive differences to determine the next term in the sequence.2, 19, 55, 112, 192, 297, . . .
A. 427 B. 429 C. 448 D. 431
The function f is one-to-one. Find its inverse.f(x) =
A. f-1(x) = x3 - 5
B. f-1(x) = x3 + 25
C. f-1(x) = 
D. f-1(x) = x - 5
Simplify the expression. If the expression contains any variables, assume that they represent positive real numbers. Write your answer with only positive exponents.
A. 9
B. 
C. 913
D. 
Determine the vertex and the x-intercepts. Then sketch the graph.y = -x2 + 2x + 8
A. 
Vertex: (1, 9);
x-intercepts: (-4, 0) and (2, 0)
B. 
Vertex: (1, 9);
x-intercepts: (-2, 0) and (4, 0)
C. 
Vertex: (1, - 9);
x-intercepts: (-2, 0) and (4, 0)
D. 
Vertex: (- 1, 9);
x-intercepts: (-4, 0) and (2, 0)