For example.. 1) switch places of x and y. x=3y+1 x=3 y +1
2) try to solve for y. so multiply the denominator by x to get rid of it
3) after multiplying, ur left with xy+x=3 x y + x=3
4) that converts to 2xy= x y =3
5) get rid of 2x on left by placing it on the right
6) convert y to inverse function
0ne and one fifth or 1 and 1/5
Answer:

Step-by-step explanation:
For this case we have the following value:

We can convert this first to
like this:

Now we use the fact the the pressure is defined as
, whre P is the pressure, F the force and A the area, so then
and then we can replace this:

Now from definition of work we know that
where W is the work, F the force and d the distance, so then is equivalent 
And if we replace this into the equation we got:

2
Because -
2 x 12=12
2 x 13 = 36
2 x 42 = 84
If y = -8 then it doesnt intercept the x axis, or any axis, it is just a horizontal line at y=-8