Question

Let  f(x)=−3x.0 The graph of f(x) ​is transformed into the graph of g(x)

Answer 1

Asssuming the original equation is f(x)=-3x


vertical stretch of 4 means multiply whole function by 4
move to right by 4 means minus 4 from every x
so first
f(x)=-3x
strech,
times 4
y=-12x
now move to right 4
minus 4 from every x
g(x)=-12(x-4)
g(x)=-12x+48

g(x)=-12(x-4) or -12x+48