Rewrite the quadratic equation in the form ax2 + bx + c = 0, then identify a, b, and c. (6x + 1)(4x - 2) = 4
A. a = 24, b = -8, c = -6
B. a = 24, b = 8, c = -2
C. a = 24, b = -8, c = 6
D. a = 24, b = 8, c = 6
Answer: A
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Rewrite the equation in standard form. Find the center and radius of the circle.x2 + y2 - 16x + 15 = 0
A. x2 + (y - 8)2 = 49 center (0, 8), r = 7 B. (x - 8)2 + y2 = 49 center (-8, 0), r = 7 C. (x + 8)2 + y2 = 49 center (-8, 0), r = 7 D. (x - 8)2 + y2 = 49 center (8, 0), r = 7
Find the equation that the given graph represents.
A. f(x) = x3 - 4x2 + 20x B. f(x) = -x3 + 20x C. f(x) = -x3 + 4x2 - 9 D. f(x) = x3 + 9x
Find the root. Assume that all variables represent positive numbers.
A. x3y14 B. x4y12 C. x6y7 D. x3y7
Identify the graph of the equation as a parabola, hyperbola, ellipse, or circle.25y2 + 16x2 = 400
A. parabola B. hyperbola C. ellipse D. circle