Answer
a) $g(-1)=-2.8$
The point is (-1, -2.8).
b) $x=3$
The point is (3, 122).
Work Step by Step
a) $g(-1)=5^{-1}-3=\frac{1}{5}-3=-2.8$
The point is (-1, -2.8).
b) $122=5^x-3$
$125=5^x$
$5^3=5^x$
$x=3$
The point is (3, 122).