Choose the function

Question

h(x)=x^2+4

 

whats  the domain of the function!

 

what's the range of the function?

Answer 1

h(x) = x² + 4

 

y = x² + 4  In graphing form: y = ( x - h )² +k

                 where (h, k) is vertex

 

y = ( x - 0 )² + 4

 

Therefor, this is a parabola with vertex (0, 4) and it opens up

 

Domain = x-values,  would be Real Numbers

 

Range = y-values,  would be Real Numbers ≥ 4

Answer 2

Domain is all Real numbers

Range is all Real numbers greater than or equal to 4.