Graph Quadratic Functions Using Transformations · Exercise 1

Graph Quadratic Functions of the form $f\left(x\right)=x^2+k$

In the following exercises, ⓐ graph the quadratic functions on the same rectangular coordinate system and ⓑ describe what effect adding a constant, k, to the function has on the basic parabola.

$f\left(x\right)=x^2,g\left(x\right)=x^2+4,$ and $h\left(x\right)=x^2-4.$

Its source prints no answer for this problem, so there's nothing to check against.

OpenStax, Intermediate Algebra 2e · §9.7 Graph Quadratic Functions Using Transformations · Exercise 1