Asked by Anonymous


1. Given the following polynomial: 2x^2 + 7x - 15 = 0 Check all that apply.

 The value of the discriminant is 169.
 There are 2 real roots.
 There are 2 irrational roots.
 The graph intersects the y-axis twice.
 The parabola is directed upward.
 The axis of symmetry is located at: x = -7/4
 The vertex is located at: (-7/4, -49/8)
 The roots are: {5,3/2}
 The graph intersects the y axis at (0, -15).
 The graph intersects the x-axis at (-5, 0) and (1.5, 0)






II.
Use the quadratic formula to solve the following: 3x^2 - x + 2 = 0

Answered by Ms. Sue
You must have neglected to read this before you posted.

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Answered by Steve
just to get you started,

2x^2 + 7x - 15 = (2x-3)(x+5)
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