Saturday
December 20, 2014

Homework Help: Algebra II

Posted by Jonathan on Wednesday, August 8, 2007 at 4:34pm.

Write y=x^2+4x-1 in vertex form.
y=x^2+4x-1
y=(x^2+4x+8)-1-8
y=(x+2)^2-9

This isnt one of my answer choices,what am I doing wrong?

in second line:

y=(x^2+4x +4 )-1 +4

(take one half of the middle coefficient, then square it)

y=(x^2+4x + 4 )-1 - 4

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Algebra - Write the standard form of the equation of the parabola whose vertex ...
algebra - 1)Find the exact solutions to 3x^2=5x-1 using the quadratic formula. ...
algebra - 1.)correct 2.)wrong---> the first term is wrong 4(3a^2)^2 = 36a^4 3...
geometry - Trisha drew a pair of line segments starting from a vertex. Which of ...
Algebra - Write an equation for the translation so the graph has the given ...
Troy - Can someone check my answers for the following problems. Simplify. Assume...
Algebra 2 - 1. Find the slope of the line through the pair of points. (-1/3,0) ...
Algebra 2 - Hey I am working on math homework that involves "Standard Form to ...
algebra - 1)Write an equation for the parabola with focus (1,3)and vertex(0,3) ...
Algebra 2 - Hey I am working on math homework that involves "Standard Form to ...

Search
Members