Accedmychevron_right11thchevron_rightmathchevron_rightFunctions And Graphschevron_rightExercise 2.1

(vii)

f(x2)=2(x2)+3=2x4+3=2x1\begin{aligned} f(x-2)&=\sqrt{2(x-2)+3}\\ &=\sqrt{2x-4+3}\\ &=\sqrt{2x-1} \end{aligned} f(x2)=2x1\boxed{f(x-2)=\sqrt{2x-1}}