SOLUTION: 1. if the point (1,-2) lies on the graph it satisfies the equation y=ax^2+bx+c substitute____ for x and ____ for y to get -2=a+b+c thank you so much for your help and time

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: 1. if the point (1,-2) lies on the graph it satisfies the equation y=ax^2+bx+c substitute____ for x and ____ for y to get -2=a+b+c thank you so much for your help and time       Log On


   

Question 981196: 1. if the point (1,-2) lies on the graph it satisfies the equation y=ax^2+bx+c
substitute____ for x and ____ for y to get -2=a+b+c

thank you so much for your help and time

Found 2 solutions by solver91311, josgarithmetic:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


In the given point, which is the x coordinate? Which is the y coordinate?

John

My calculator said it, I believe it, that settles it

Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
This will only give one equation. JUST substitute the values of the point!

Here's the try.
-2=a%2A1%5E2%2Bb%2A1%2Bc
-2=a%2Bb%2Bc