Find the ordered pair for the y-intercept of the graph of the quadratic equation.y = 2x2 - 3x + 9
A. 
B. (0, 9)
C. 
D. (0, -3)
Answer: B
Mathematics
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Decide whether the figure is convex or concave.
A. Concave B. Convex
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Verify the identity.
= 
What will be an ideal response?
Mathematics
Decide whether the expression is or is not an identity.sin (A + 4?) = cos (A + ?)
A. Not an identity B. Identity
Mathematics
Write the expression in terms of sines and/or cosines, and then simplify.sec2 x(1 + cos2 x)
A. 
B. sin x
C. 
D. 
Mathematics