SOLUTION: Find the x intercepts and y intercepts for the following: (write as an ordered pair, using an interger or a decimal rounded to the nearest tenth.) f(x)=x^2-9x+5

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Find the x intercepts and y intercepts for the following: (write as an ordered pair, using an interger or a decimal rounded to the nearest tenth.) f(x)=x^2-9x+5      Log On


   

Question 176980: Find the x intercepts and y intercepts for the following: (write as an ordered pair, using an interger or a decimal rounded to the nearest tenth.)
f(x)=x^2-9x+5
Answer by jojo14344(1513) About Me  (Show Source):
You can put this solution on YOUR website!

Solving for the x-intercepts:
x%5E2-9x%2B5=0
By Quadraric, where---->system%28a=1%2Cb=-9%2Cc=5%29
x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29
x=%28-%28-9%29%2B-sqrt%28-9%5E2-4%2A1%2A5%29%29%2F%282%2A1%29
x=%289%2B-sqrt%2881-20%29%29%2F2=%289%2B-sqrt%2861%29%29%2F2=%289%2B-7.81%29%2F2
x=%289%2B7.81%29%2F2=16.81%2F2=highlight%288.405%3E=8.41=x%29
x=%289-7.81%29%2F2=1.19%2F2=highlight%280.60=x%29
Y-Intercept:
f%28x%29=0=y=0%5E2-9%280%29%2B5
highlight%28y=5%29
We'll see the graph:

Thank you,
Jojo