Friday

March 6, 2015

March 6, 2015

Posted by **Jason** on Thursday, August 25, 2011 at 7:11am.

y=x^2-2x-2

- Precalculus -
**drwls**, Thursday, August 25, 2011 at 7:19amy = (x-1)^2 -3

When y = 0, (x-1)^2 = 3

x - 1 = + or - sqrt3

x = 1 + sqrt3 or 1 - sqrt3

When x = 0, y = -3

There is no symmetry about the x or y axes, or origin.

- Precalculus -
**Damon**, Thursday, August 25, 2011 at 7:24amWhen x = 0, y = -2, y axis intercept

When y = 0

x = [ 2 +/- sqrt(4+8)]/2 = 1 +/- sqrt 3

therefore parabola is symmetric about the vertical line x = 1

show it by completing the square

x^2 - 2x = y + 2

x^2 - 2x + 1 = y+3

(x-1)^2 = (y+3)

vertex at (1,-3)

- Precalculus -
**Jason**, Thursday, August 25, 2011 at 7:32amthank you damon! that was exactly what i was looking for, by the way it's 4:32 am here and i've been searching for that answer for hours...

**Answer this Question**

**Related Questions**

Precalculus - find any intercepts of the graph of the given equation. determine ...

Precalculus - find any intercepts of the graph of the given equation. determine...

symmetry help - find any intercepts of the graph of the given equation. ...

math-please help,need quickly - find the slant asymptote of the graphof the ...

Alegrba - Please check my answers. Also, can I see some graphs of y-axis ...

pre-cal - what is the slant asymptote of the graph of the rational function and ...

Algebra-Polynomails - Please explain to me orgin of symmetry, y-axis semmetry, ...

math, algebra,graphs help - THe directions state: (A)Complete the table, (B) ...

Algebra,Math, graphs help - This is what the directions state to do: (A) ...

Algebra II - Determine whether the grapg of the given equation is symmetric with...