Graph the quadratic equation. Identify the vertex and the intercept points with their coordinates.y = -4x2 
A. vertex: (0, 0)
x-intercepts: none
y-intercepts: none
B. vertex: (0, 0)
x-intercepts: none
y-intercepts: none
C. vertex: (0, -4)
x-intercepts: none
y-intercepts: none
D. vertex: (0, 0)
x-intercepts: none
y-intercepts: none
Answer: D
Mathematics
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+ xy = 2x; y = -6 when x = 0
A. y = 2e-x2/2 - 8 B. y = 2ex2/2 - 8 C. y = -8e-x2/2 + 2 D. y = -8ex2/2 + 2
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Write in exponential form.13 ? 13 ? 13 ? 13
A. 413 B. 131 C. 134 D. 4 ? 13
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Use a calculator to evaluate the expression. 
A. 35,420 B. 212,520 C. 53,130 D. 8855
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Use the fact that the trigonometric functions are periodic to find the exact value of the expression. Do not use a calculator.csc 540°
A. -1
B. 2
C. 
D. undefined
Mathematics