Question

let f(x)=2x-5 . write a function h whose graph is a rotation of f (x) about (0,-5) by a factor of 3

Answer 1

$f(x)=2x-5$

the red line is f(x)

green line is a rotation about (0,-5)

now we try to define the green line an then multiply by 3

for this we just change the slope sign to obtain the fuction

$-2x-5$

no multiply by 3

$h(x)=-6x-15$