Evaluate f(x) at the given value of x.f(x) = 
x = 
A. 
B. 
C. 
D. 
Answer: A
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Solve.Suppose that y varies directly as the cube of x. If x is tripled, what is the effect on y?
A. It's multiplied by 3. B. It's multiplied by 9. C. It's multiplied by 27. D. It's cubed.
Solve.It is suspected that an incorrect resistor was put into a circuit. The correct resistor should be 
A voltage measurement is taken and found to be 
The current is measured to be 
Is the resistor correct?
A. Yes B. No
Find the vertex, focus, and directrix of the parabola. Graph the equation.y2 = -8x
A. vertex: (0, 0)
focus: (2, 0)
directrix: x = -2
B. vertex: (0, 0)
focus: (0, -2)
directrix: y = 2
C. vertex: (0, 0)
focus: (-2, 0)
directrix: x = 2
D. vertex: (0, 0)
focus: (0, -2)
directrix: y = 2
Express in scientific notation.13,000,000
A. 1.3 × 10-7 B. 1.3 × 106 C. 1.3 × 10-6 D. 1.3 × 107