SOLUTION: f(x) = x2 – 4 apply the quadratic formula to find the roots of the given function, and then graph the function.

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: f(x) = x2 – 4 apply the quadratic formula to find the roots of the given function, and then graph the function.       Log On


   

Question 331681: f(x) = x2 – 4 apply the quadratic formula to find the roots of the given function, and then graph the function.
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
f(x)=x^2-4
a=1,b=0,c=-4
..
x1= (0+sqrt(0+16))/2
x1=2
x2= (0-sqrt(0+16))/2
x2= -2
..
graph%28300%2C300%2C-5%2C8%2C-5%2C5%2Cx%5E2-4%29