(9,-1); m=4/3 write an equation in point slope form for the line through the given point with the given slope

For this problem you are going to need to know the point-slope equation which is: 
y-y₁=m(x-x₁)

Now, m=slope and the x and y values are given to us already, so now we just plug our variables into the formula.

It should look like this: 
Since all they are asking for is for you to put it into a formula this will be your answer.

The answer would be option 4