SOLUTION: please help me find the exact solution for {{{y=x-3}}} {{{x=y^2-4}}} the chapter in my book is circles, lines, and parabolas. i need my work shown as well. thank you!!

Algebra ->  Quadratic-relations-and-conic-sections -> SOLUTION: please help me find the exact solution for {{{y=x-3}}} {{{x=y^2-4}}} the chapter in my book is circles, lines, and parabolas. i need my work shown as well. thank you!!      Log On


   

Question 303787: please help me find the exact solution for y=x-3 x=y%5E2-4 the chapter in my book is circles, lines, and parabolas. i need my work shown as well. thank you!!
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Hint: Plug y=x-3 into x=y%5E2-4 to get x=%28x-3%29%5E2-4. From there, get the quadratic in standard form and then use the quadratic formula to solve. Once you have your solutions in terms of 'x', use them to find the solutions in terms of 'y'.