SOLUTION: Use the discriminant to find how many places the quadratic function crosses the x-axis. x^2 - 5x - 14 = 0 a) Two zeros b) One zero c) No zeros

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equation Customizable Word Problems -> SOLUTION: Use the discriminant to find how many places the quadratic function crosses the x-axis. x^2 - 5x - 14 = 0 a) Two zeros b) One zero c) No zeros       Log On


   

Question 189969: Use the discriminant to find how many places the quadratic function crosses the x-axis.
x^2 - 5x - 14 = 0

a) Two zeros
b) One zero
c) No zeros
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
D=%28-5%29%5E2-4%281%29%28-14%29=25%2B56=81
:
therefore since D is positive there are two zero's