To solve this, pick any point on the graph, I’m choosing (1,2) but it doesn’t matter
Next, sub in these numbers in the equation with the other point needed (x,5)
(5-2)/(x-1)
We already know the slope is 3 so this is equal to 3
Now we multiply both sides by the denominator (x-1) to cancel out the fraction
So now it’s
5-2=3(x-1)
Simplify
3=3x-3
Solve for x
6=3x
X=2
