Question

Line Equation from Two Points

What is an equation of the line that passes through the points (-5, 5) and (8,5)?

Answer 1

y=5

Explanation:

1. Find the slope of the line using (y2-y1)/(x2-x1):

m =(5-5)/(8-(-5)) = 0

m = 0

2. plug into y=mx+B using one of the two points, I choose (5, 5):

(5) = 0(5) + b,

b = 5

Final equation:
y = 5