Graph Quadratic Functions Using Transformations · Try It 2

ⓐ Graph $f\left(x\right)=x^2,g\left(x\right)=x^2+6,$ and $h\left(x\right)=x^2-6$ on the same rectangular coordinate system.
ⓑ Describe what effect adding a constant to the function has on the basic parabola.

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OpenStax, Intermediate Algebra 2e · §9.7 Graph Quadratic Functions Using Transformations · Try It 2