Question

help!! please!! ill give you a medal. What is the equation in point-slope form of the line passing through (2, 2) and (4, 8)?

Answer 1

@phi

Answer 2

Point slope form is y - y1 = m(x-x1).
We can use any set of those points but we need the slope first, and we can find that by
y2-y1/x2-x1.
The slope is 6/2 or 3.
Now we can use point slope form. Let's use the first coordinates.
y - 2 = 3(x-2)
Just distribute the right side first...
y -2 = 3x-6
and add 2 to isolate y.
y = 3x-4.