Question

Find the domain and range of 9x^2-8?
Answer must be in numerical and include interval

Answer 1

unless otherwise specified, the domain of a polynomial is all real numbers

Answer 2

because this is a parabola that opens up, the range will be from the second coordinate of the vertex to infinity. there the vertex is (0, -8) so range is
\[[-8,\infty)\]

Answer 3

Thanks so much satellite73!!!

Answer 4

yw