Question

How do you find the inverse of each of `y=2x-5` and graph them. Draw and label the line of symmetry for the inverse and the original graph?

Answer 1

To find the inverse, swap the `x` and `y` and then make `y` the subject

`y=2x-5` swap `=> x=2y-5`

`x+5=2y`

`[x+5}/2=y` is the inverse

To plot either graph draw up a table of values with `-5leqxleq5`

As they are both straight line graphs there is no line of symmetry on either