Question

What’s the equation of the line that passes through the points (-3,-3) and (3,1)?

Answer 1

y = 2/3 x - 1

Explanation:

1. Find the slope:

1 - (-3) = 4/6 = 2/3 = m

3 - (-3)

2. Find b by plugging in the m and one of the points given into y = mx + b

1 = 2/3 ( 3) + b

1 = 2 + b

-1 = b

3. Write the equation using the m and the b you just found

y = 2/3 x - 1