Question

Find the range of the function.
f(x) = x2 + 3

Answer 1

find the vertex

Answer 2

i think you complete the square to find it.

Answer 3

or first do you know what range is?

Answer 4

ooh and another tip.

since x2+3 is just x2 shifted up 2 unites then the vertex is at 0,3

ANd since range is all the y and we know that the graph will look like



your range is

3 to infinity