Sunday

March 1, 2015

March 1, 2015

Posted by **Tommy** on Monday, June 20, 2011 at 4:56pm.

y=x^2-x-23

- Algebra -
**bobpursley**, Monday, June 20, 2011 at 5:39pm0=2x-1

x=1/2, y=1/4-1/2-23=-23.75

That is with Calculus. Now in Algebra, do this

y=x^2-x + xxxx -23-xxxxx

we are going to make a difference of prefect squares.

y=x^2-x+1/4 -23-1/4

y= (x-1/2)^2 - (sqrt22.75)^2

so clearly, this is a minumum at x=1/2

**Answer this Question**

**Related Questions**

algebra - 1)Find the exact solutions to 3x^2=5x-1 using the quadratic formula. ...

Algebra - 1)Find the exact solutions to 3x^2=5x-1 using the quadratic formula. ...

College Algebra - A quadratic function has its vertex at the point (-9,8). The ...

Troy - Can someone check my answers for the following problems. Simplify. Assume...

algebra II - Can you please help me with the these problems. 8.Write an equation...

Algebra Functions - I cannot for the life of me remember how to do this- Find ...

Fibonacci numbers - I have been working on this question all day and can not ...

Math - Write the quadratic function in standard form (if necessary) and sketch ...

MATH - Write the quadratic function in standard form (if necessary) and sketch ...

Pre Calculus - He needs two adjacent rectangular enclosures - he has 300 feet of...