SOLUTION: Find the x-intercepts and y-intercepts for f(x) f(x)=x^2-9x+2 The x intercepts are? THe y-intercepts are?

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Find the x-intercepts and y-intercepts for f(x) f(x)=x^2-9x+2 The x intercepts are? THe y-intercepts are?      Log On


   

Question 418659: Find the x-intercepts and y-intercepts for f(x)
f(x)=x^2-9x+2
The x intercepts are?
THe y-intercepts are?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

f(x)=x^2-9x+2

y-intercept (when x = 0) Pt(0,2)

x-intercepts whe f(x) = 0

 x^2-9x+2 = 0

 x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+

 x+=+%289+%2B-+sqrt%28+73+%29%29%2F%282%29+

   x= .456/2 = .228 and x =  17.554/2 = 8.777