Thursday

April 17, 2014

April 17, 2014

Posted by **Ana** on Friday, December 2, 2011 at 11:04am.

- Algebra 2 -
**Reiny**, Friday, December 2, 2011 at 11:12amTo have x-intercepts you must have a function,

I bet your equation was

y = 2(x-3)^2 - 1 or f(x) = 2(x-3)^2 -1

then

y = 2(x^2 - 6x + 9) - 1

y = 2x^2 - 12x + 17 , your expansion was incorrect

so at the x-intercept, y = 0 and

2x^2 - 12x + 17 = 0

x = (12 ± √8)/4

= (12 ± 2√2)/4

x = (6+√2)/2 or x = (6 - √2)/2

- Algebra 2 -
**Ana**, Friday, December 2, 2011 at 12:06pmthanks so much!

**Related Questions**

Algebra I - Did I do these probelms correctly? Find the intercepts 1. y^2 = x^2...

algebra - How do you find any x-intercepts and y-intercepts. If no x-intercepts ...

Algebra - Here's the question I'm having trouble with: Tell how you would ...

Algebra - Did I do this right? Find the vertex, the x intercepts and y ...

algebra - find the x and y intercepts and graph the equation plotting the ...

algebra - find the x-intercepts and y-intercepts f(x)=-x^2+4x+32

algebra - Suppose that a quadratic equation had two x-intercepts. How could you ...

College Algebra - Suppose that the Quadratic equation had two X-intercepts. How ...

Algebra - Find the x and y intercepts and graph the equation plotting the ...

algebra - Graphing Quadratic Functions Find any x-intercepts and the y-intercept...