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..

Question

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..

anonymous · Answer

attachment

anonymous · Answer

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.

campbell_st · Answer

the curve is concave down (so negative x^2). It is negative definite so find the parabola that has a negative discriminant...