Solve the problem.Suppose that the x-intercepts of the graph of y = f(x) are 3 and 9. What are the x-intercepts of 
A. 3 and 7
B. 1 and 7
C. 6 and 18
D. 5 and 11
Answer: D
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Determine which values of x and y, if any, are not permissible. f(x, y) = (5x - 2y)5
A. y ? 0 B. All values of x and y are permissible. C. x ? 0 D. The point (0, 0) is not allowed.
Solve the problem.A voltage source of 12 volts can supply a voltage V (in volts) through a 
line to a variable resistance R (in ohms) given by the following equation. 
How fast does V change with respect to R when R is 
A. 6.496 V/? B. 0.049 V/? C. 0.167 V/? D. 0.232 V/?
Convert to a logarithmic equation.100.301 = 2
A. 2 = log10 0.301 B. 10 = log9 0.301 C. 0.301 = log10 2 D. 0.301 = log9 10
Factor the trinomial completely. If the polynomial cannot be factored, write "prime."4x2y - 4xy - 12y
A. 4y(x2 - x - 3) B. 4y(x - 3)(x - 1) C. 4(x - 3y)(x - 1) D. y(4x2 - 4x - 12)