SOLUTION: 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 ar

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Question 1085653: 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

Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!

I. Given the following polynomial:

Check all that apply.

 The value of the discriminant is .
 There are real roots.
, so there are 2 real roots
 The parabola is directed upward.
since which is positive number, the parabola directed upward
 The axis of symmetry is located at:
-> ->the axis of symmetry goes through vertex (,) and it is a vertical line

 The graph intersects the y axis at (,).



 The graph intersects the x-axis at (, ) and (,)

-> -> point (, )
-> -> (,)



II.
Use the quadratic formula to solve the following:






solutions:







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