Write an equation for the parabola.
A. x2 = -4y
B. x2 = 4y
C. y2 = -4x
D. y2 = 4x
Answer: B
Mathematics
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Solve the inequality and graph the solution.
? 6
A. n > 18
B. n ? 18
C. n < 18
D. n ? 18
Mathematics
Use a graphing calculator to determine which expression completes the identity.The expression 
is to be the left hand side of an equation that is an identity. Which one of the following four expressions can be used as the right hand side of the equation to complete the identity?
A. cos x + 1 B. tan x - sec x C. sin x + cos x D. cot x + sin2x
Mathematics
Perform the indicated operation.
÷ 
A. 1
B. 
C. 36
D. 
Mathematics
Plot the graph of the function f in an appropriate viewing window. Select the correct answer.
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Mathematics