Simplify. Assume that any variables are positive.
A. 16x
B. 
C. 
D. x 
Answer: C
Mathematics
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Find the equation of the parabola satisfying the given conditions. The vertex is at the origin.Focus (-7, 0)
A. y = - 
x2
B. x2 = -28y
C. y2 = -28x
D. y = -28x2
Mathematics
Use Descartes's Rule of Signs to determine the possible number of positive and negative real zeros for the given function.f(x) = x5 + x4 + x2 + x + 9
A. 0 positive zeros, 0 negative zeros B. 0 positive zeros, 2 or 0 negative zeros C. 0 positive zeros, 1 negative zero D. 0 positive zeros, 3 or 1 negative zeros
Mathematics
Graph the function.y = -
A. 
B. 
C. 
D. 
Mathematics
Factor completely. If the polynomial cannot be factored, write "prime."2x2 + 2xy + y2
A. 2(x + y)2 B. (2x + y)(x + y) C. (2x + y)(x - y) D. Prime
Mathematics