Answer:
y - 2 = 2/3 (x-1)
<h2>OR</h2>
y - 4 = 2/3(x-4)
<h2>NOTE ;ALL WILL GIVE THE SAME RESULT</h2>
Step-by-step explanation:
With this graph,the equation can be found on a straight line as the graph is .
So the formula is

where your m is your gradient or slope as already said,the equation can be used by this formula (note;after finding your normal slope (not on a straight line ) firstly)
When you are done take any of the points connecting to the x axis and y axis directly as in (4,-4) or (2,1)
Let your first number be x1 and second y1 and place it in the formula .
<h2>NOTE: Y and x is constant and your general solution should be in the form;</h2>
<h3>y = mx +c </h3>
where m is still your normal slope.