Point slope is extremely easy once you figure it out!!
All you need is a point and a slope (obviously lol). Here is the formula:
y-(y1)=m(x-x1)
Where m=slope, and (x1, y1) is the point they give you.
So if you're given the point (21, 5) and the slope 1.4, plug in those numbers to the formula.
y-5=1.4(x-21)
You can add the 5 on both sides to solve for y so the final answer would be:
y=1.4(x-21)+5
Let's say you were given the point (5, 7) and the slope is 2. Your equation would be:
y-7=2(x-5)
Which you could solve for y to be:
y=2(x-5)+7
