Posted by **Josh ** on Wednesday, August 3, 2011 at 6:01pm.

put function in standard form

f(x)=-4x^2-32x+9

- Calculus -
**MathMate**, Wednesday, August 3, 2011 at 10:27pm
There are many "standard forms". One of which is f(x)=a(x-h)²+k

where (h,k) is the position of the vertex, and a is a constant.

This can be achieved by completing the square of

f(x)=-4x^2-32x+9

=-4(x²+8x-9/4)

=-4(x+4)²+4*4²+9/4

=-4(x+4)²+265/4

## Answer this Question

## Related Questions

- calculus - An open box is to be made from a square piece of cardboard, 32 inches...
- Algebra - Two more Algebra questions : Drawing a blank on this one, not sure ...
- Algebra - Two more Algebra questions : Having some difficulty with these. ...
- calculus - Put the function P=40(39)t in the form P0e^kt. When written in this ...
- Calculus - put in standard form: 4x^2=36+9y^2
- Pre-Calculus - How do I write the quadratic function f(x) = 1/2 (6x^2 - 24x + 22...
- Calculus - Diffentiate the function F(x)=(1/2x)^5 My answer is 5/2x^4. The book ...
- calculus - Put the function P=15(1.1)^t in the form Pe^kt
- math - How would I write the following quadratic function in standard form? The...
- math - can anyone help with this? suppose you bought some 32 cents stamps and ...

More Related Questions