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Determining the range of a function of the form $f = m|x| + a$.

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The range is the set of values that can be taken by $f(x)$, i.e. the values on the $y$-axis.

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{geogebra_applet('https://www.geogebra.org/m/aqcgkurg',[a: a, m: m])}

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Therefore, for $f(x)=\\simplify{{m}x^2+{a}}$, the range is $[\\var{a}, \\infty)$. 

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Use this link to find some resources to help you revise how to find the domain and range of a function.

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Given $f(x)=\\simplify{{m}x^2+{a}}$

What is the range of $f(x)$?

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