Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Find the product.-7x6(9x + 12)
A. -63x7 - 84x6 B. -63x - 84 C. -147x6 D. -63x7 + 12
Mathematics
Use Cramer's rule to solve the system. x + y + z - w = 6 2x - y + 3z + 4w = -4 4x + 2y - z - w = -13 -x - 2y + 4z + 3w = 12
A. 
B. 
C. 
D. Can't use Cramer's rule, D = 0
Mathematics
Use Descartes' Rule of Signs and the Rational Zeros Theorem to find all the real zeros of the polynomial function. Use the zeros to factor f over the real numbers. f(x) = x4 + 21x2 - 100
A. -5, 5; f(x) = (x - 5)(x + 5)(x2 + 4) B. -2, -5, 2, 5; f(x) = (x - 2)(x + 2)(x - 5)(x + 5) C. 2; f(x) = (x - 2)2(x2 + 25) D. -2, 2; f(x) = (x - 2)(x + 2)(x2 + 25)
Mathematics
Determine the vertex of the graph of the parabola.y = - x2 + 2x - 1
A. (0, 1) B. (0, -1) C. (-1, 0) D. (1, 0)
Mathematics