given the function(x)=5x+4, find its inverse
Make the function, f (x) into y. Then switch the variables y and x and solve for y : (x-4)/5
the inverse is the reflection across the identiy line, the y=x line
basicallyswitch x and y and solve for y
f(x)=5x+4y=5x+4swtichx=5y+4solve for yx-4=5y(x-4)/5=y
finverse=(x-4)/5