If f(x) and r^(x) are inverse functions of eachother and f(x)=2x+5 what is f-1(8)?

recall that for inverse functions, the range of the original is the domain of the inverse and othe other way around.

so f⁻¹(8) is f⁻¹(x) but making x = 8, so the domain value in this case for the inverse is 8, and that's going to give us something, but let's nevermind that.

since the domain value is 8 for the inverse, that means, the same 8, is a range for the original f(x).

meaning, "some value of x" on the original, gives us a range of 8, then let's use that 8 in the original, BUT not on "x", but on "y", or f(x).

so notice how the values swap places for the inverses, one's domain, is the other's range.

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)

add me on g  

mail to get the anwser

blogan.20174