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March 5, 2015

March 5, 2015

Posted by **Joey** on Friday, March 28, 2008 at 6:15pm.

y=(x+)^2-7

answer:

y=(x+4)(x=4)-7

y=(x^2+8x+16)-7

y=x^2+8x+9

The domain and range equal all real numbers.

- Algebra -
**Damon**, Friday, March 28, 2008 at 6:25pmIt looks like you mean

Give the domain and range.

y=(x+4)^2-7

y = x^2 + 8 x + 9 agreed

BUT

This is a parabola opening up

Indeed you can get a y for any x, so the DOMAIN is all real x

HOWEVER

The RANGE is all y above the vertex!

The vertex is at x = -4 where y = -7

so the range is all y greater or equal to -7

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