Determine algebraically whether the graph is symmetric with respect to the x-axis, the y-axis, and the origin.x2 + y2 = 8
A. y-axis only
B. x-axis, y-axis, origin
C. x-axis only
D. Origin only
Answer: B
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Graph the parabola and label the vertex. Find the y-intercept.y = 
x2 - 5
A. vertex (0, 5), y-intercept (0, 5)
B. vertex (0, 5), y-intercept (0, 5)
C. vertex (0, -5), y-intercept (0, -5)
D. vertex (0, -5), y-intercept (0, -5)
Solve.When making a telephone call using a calling card, a call lasting 5 minutes cost $0.90. A call lasting 12 minutes cost $1.60. Let y be the cost of making a call lasting x minutes using a calling card. Write a linear equation that models the cost of making a call lasting x minutes.
A. y = 0.1x + 0.4
B. y = -0.1x + 1.4
C. y = 0.1x - 10.4
D. y = 10x - 
A coin is tossed three times. Describe the event A that at least two tails occur. ?
A. ?{TTT, THH, THT, HHT} B. ?{HHH, TTH, THT, HTT} C. ?{TTT, TTH, THT, HTT} D. ?{TTTT, TTHT, THTT, HTTT} E. ?{TT, HT, TH}
Verify the identity.csc 
= sec x
What will be an ideal response?