SOLUTION: For the function f(x)=x squared + 2/x-1 How do I check for symmetry and find the y-intercept? I think I was able to find the x-intercept by plugging in the function equation x=0.

Algebra ->  Rational-functions -> SOLUTION: For the function f(x)=x squared + 2/x-1 How do I check for symmetry and find the y-intercept? I think I was able to find the x-intercept by plugging in the function equation x=0.      Log On


   



Question 286453: For the function f(x)=x squared + 2/x-1 How do I check for symmetry and find the y-intercept? I think I was able to find the x-intercept by plugging in the function equation x=0.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Hint: If f(x) is symmetric with respect to the 'x' axis, then f%28x%29=-f%28x%29 (ie negate the 'y' value). If f(x) is symmetric with respect to the 'y' axis, then f%28-x%29=f%28x%29. Finally, if f(x) is symmetric with respect to the origin (ie you can rotate the graph 180 degrees and it won't change), then f%28-x%29=-f%28x%29