SOLUTION: Let P= (x,y) be a point on the graph of y=x^2-9 Express the distance d from P to the origin as a function of x

Algebra ->  Rational-functions -> SOLUTION: Let P= (x,y) be a point on the graph of y=x^2-9 Express the distance d from P to the origin as a function of x       Log On


   

Question 1095391: Let P= (x,y) be a point on the graph of y=x^2-9
Express the distance d from P to the origin as a function of x
Answer by greenestamps(13215) About Me  (Show Source):
You can put this solution on YOUR website!

A point on the graph has coordinates (x,x^2-9). The distance of that point from the origin (0,0) is
sqrt%28%28x%29%5E2%2B%28x%5E2-9%29%5E2%29