Question
Give the domain and range.
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.
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.
Answers
Damon
It 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
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