Find an expression for the inverse function for the general linear function f(x)=mx+b, with m does not equal 0, in terrms of m,b, and x. Would the inverse be x=my+b since you switch out the x's and y's? I am lost so the first person to respond with the correct answer will receive 30 creds.
inverse of f(x)=( x-B )/m How you do it: set f(x)=y y=mx+b y-b=mx ( y-b )/m=x swap x's and y's around. ( x-b )/m=y set y=inverse f(x) f(x)=( x-b )/m i was studying this for my maths exam tomorrow, very wierd that i happen to stumble across it here...
How? I was under the impression for the inverse you had to switch out the y's and x's or was that for something else?
take a look at edited post. i was editing before you posted so i wasn't sure if you'd see this or not. i'm very sure it works.
no problem. you doing A level maths or something? If so, my C3 exams tomorrow i am soooooooo worried about it.
I am doing Algebra 2 honors as a freshmen,in highschool. Good luck with your exam tommorow. You seem to know your stuff.
Actually when you find the inverse of any equation you should exchange the x and y before you do anything else. Then you solve for y and yur done.
well i see how you get x=my+b from y=mx+b but i dont think you can jsut change the variables like that, theres prolly more.
I did algebraII as a freshman as well... just switch the two variables to do this... simple as that... have fun with logarithms when you get to them. he's trying to find the inverse equation. he wants the graph to be refleceted across the line y=x
