Question

If g(x) = gn="absmiddle" class="latex-formula"> , find g(8), g(32) and g(80).

Answer 1

Pafff

g(x)=$\sqrt{x-7}$


this means if you put in 8 for x then you will get g(8)=$\sqrt{8-7}= \sqrt{1}=1$

so subsitute and solve

g(8)=$\sqrt{8-7}= \sqrt{1}=1 or -1$


g(32)=$\sqrt{32-7}= \sqrt{25}=5 or -5$


g(80)=$\sqrt{80-7}= \sqrt{73}=$ aprox 8.544  but √73 would be acceptable