For problems 12-14 use 
. Identify the x-intercept.
A. 
B. 
C. 
D. There is no x-intercept.
E. None of these
Answer: D
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Solve the problem.The voltage across a resistor is jointly proportional to the resistance of the resistor and the current flowing through the resistor. If the voltage across a resistor is 
for a resistor whose resistance is 
and when the current flowing through the resistor is 
find the voltage across a resistor whose resistance is 
and when the
current flowing through the resistor is 
A. 54 V
B. 12 V
C. 45 V
D. 18 V
Refer to the graph of the linear function defined by 
or the graph of the linear functions defined by 
and 
to solve the equation or inequality.
y1 ? y2
A. [-3, ?) B. (-?, -3) C. (-3, ?) D. (-?, -3]
Is ?ABC ~ ?A'B'C' if m?B = m?B', AB= 36, BC= 24, A'B'= 90, and B'C'= 60.
What will be an ideal response?
Simplify the expression.
A. 
B. y2 + 2y + 4
C. 
D. y2 - 4