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OpenStudy (anonymous):
The parabola is the graph of which function? A. y = -2x2 + 3x + 10 B. y = x2 + 6x + 10 C. y = -x2 - 6x - 15 D. y = 2x2 + 4x + 15 I chose D..
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OpenStudy (anonymous):
OpenStudy (anonymous):
Find points (x,y). Stick into each equation. See if fits. Right off the bat, the coordinates of the vertex eliminates some stuff. Rinse, repeat.
OpenStudy (campbell_st):
the curve is concave down (so negative x^2). It is negative definite so find the parabola that has a negative discriminant...
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