Provide an appropriate response.Explain in your own words how you can tell from the equation whether a parabola opens up or down or whether it opens left or right.
What will be an ideal response?
The parabola opens up or down if there is an x2-term (y is not squared). It opens left or right if there is a y2-term (x is not squared).
Mathematics
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Graph the equation and its tangent.Graph y = -5x2 and the tangent to the curve at the point whose x-coordinate is 1.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The chorus has six sopranos and eight baritones. In how many ways can the director choose a quartet that contains at least one soprano?
A. 1001 ways B. 931 ways C. 986 ways D. 1071 ways
Mathematics
Find the amplitude.y = 4 sin
A. 12
B. 3
C. 
D. 4
Mathematics
Find the vertical asymptotes of the rational function.f(x) = 
A. x = -1 B. x = 1, x = -4 C. x = -1, x = 4 D. x = -1, x = -4
Mathematics