Question

if f(x)=7x is horizontally stretched by a factor of 5, moved up 3 units, and reflected across the x-axis, which of the following is the new expression of f(x) ? option #1: f(x)=−75x+3 option #2: f(x)=−715x+3 option #3: f(x)=15⋅7−x+3 option #4: f(x)=−5⋅7x+3 (1 point) option #