Question

For f(x)= 2x-5 and g(x)= 3-x , find (f (times) g)(-2)

Answer 1

$f(x)= 2x-5 \\g(x)= 3-x \\\\f(-2)= 2 \cdot (-2)-5 =-4-5=-9\\\\g(-2)=3-x=3-(-2)=3+2=5\\\\ (f \cdot g)(-2)=f(-2)\cdot g(-2)= (-9)\cdot 5=-45$