Find the equation of the tangent line at the given point on the curve.3x2 + 4xy + y2 + x - 2y = -7; (-1, 3)
A. x = -1
B. y = 3
C. y = -x + 3
D. y = -x - 1
Answer: A
Mathematics
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Given the equation or other information for a parabola, find the matching description or graph.f(x) = ax2 + bx + c,a < 0; b2 - 4ac < 0
A. 
B. 
C. 
D. 
Mathematics
Write interval notation for the graph.
A. ( -?, q) B. (q, ?) C. [q, ?) D. (-? , q]
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Determine which elementary row operation(s) applied to the first matrix will yield the second matrix.
, 
What will be an ideal response?
Mathematics
Determine a window that will provide a comprehensive graph of the polynomial function.y = 0.62x3 - 5x2 + 11x + 8
A. [-20, 10] by [-3000, 2000] B. [-30, 80] by [-8000, 4000] C. [-50, 100] by [-1000, 6000] D. [-100, 10] by [-7500, 1000]
Mathematics