Question

Write the equation of the line that passes
through the points (3, 1) and (9,-3)

Answer 1

y = -2/3 + 3

Explanation:

y2 - y1 / x2 - x1

-3 - 1 / 9 - 3

-4 / 6

-2/3

y = -2/3x + b

1 = -2/3(3) + b

1 = -2 + b

3 = b

y = -2/3 + 3