Complete the table modeling the inverse of function f

What is the effect on the graph of the parent function f(x) = x when f(x) is replaced with 3f(x)? a) shifts the line 3 units up b) shifts the line 3 units down c) increases the slope of the line by a factor of 3 d) decreases the slope of the line by a factor of 3

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?