Solve the problem.Suppose that f(x) = 2x. If f(x) = 
, what is x?
A. -2
B. -4
C. 2
D. 4
Answer: B
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Convert to base ten.42five
A. 47 B. 42 C. 27 D. 22
Graph the function defined by a radical expression. Give the domain and range.
= - 
A. Domain: [-3, 0];
Range: [-2, 2]
B. Domain: [-3, 3];
Range: [-2, 0]
C. Domain: (-?, ?);
Range: (-?, -2]
D. Domain: [-3, 3];
Range: [0, 2]
Write the expression in expanded form.log 
A. log(6x3
) - log(5(x + 1)2)
B. log 6 + 3 log x + 
log(1 - x) - log 5 + 2 log(x + 1)
C. log 6 + 3 log x + 
log(1 - x) - log 5 - 2 log(x + 1)
D. log 6 + log x3 + log(1 - x)1/3 - log 5 - log(x + 1)2
Find the coordinates of the vertex of the graph of the equation. If necessary, complete the square on x to write the equation in the form y = a(x - h)2 + k. Do not graph the equation.y = -4(x - 3)2
A. (0, -4) B. (5, 0) C. (-4, 0) D. (0, 3) E. (3, 0)