3 years ago

If f(x)=15x+3, then f-1(x)=

Mathematics

1 answer:

Ilya [14]3 years ago

8 0

Answer:

y=x-3/15

Step-by-step explanation:

f(x)=15x+3/y=15x+3

f-1(x) is an inverse function, which means you gotta swap the x an the y:

x=15y+3

The goal is to get y alone, so you minus 3 on both sides to get

x-3=15y

And then divide both sides by 15 to get y alone

x-3/15=y

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