Posted by **Karen** on Wednesday, January 20, 2010 at 10:29pm.

If (a,-3) is a point on the graph of y=x^2+4x, what is the value of a?

so far i have -3=x^2+4x

i can do the problem on my graphing calc but we can't use a graphing calc on the test so i need to know how to do it by hand. what do i do next?

## Answer this Question

## Related Questions

- algebra - How do you solve this math problem? h= -8t^2+40t then it says: when t=...
- For MUFFY - You stated on Saturday that you understood my solution as far as ...
- math - A parabola has the equation y = 4(x-3)^2-7 Choose 2 true statements: A) ...
- math - A parabola has the equation y = 4(x-3)^2-7 Choose 2 true statements: A) ...
- Calculus II - Here's the problem: Find the area of a plane region bounded by y=x...
- Calculus - The present value of a building in the downtown area is given by the ...
- Calculus - The present value of a building in the downtown area is given by the ...
- Calculus - The present value of a building in the downtown area is given by the ...
- Calculus - The present value of a building in the downtown area is given by the ...
- Calculus - The present value of a building in the downtown area is given by the ...

More Related Questions