Answer Key

1)   y-y = m(x-x1)

y – 2 = 1/3(x-5)

            y = 1/3x – 5/3 + 6/3

            y = 1/3x + 1/3

2) y – y1 = m(x-x1)

            6-3/4-2 = 3/2

            y – 3 = 3/2(x-2)

            y = 3/2x – 6/2 + 6/2

            y = 3/2x

3)         y – y1 = m(x-x1)

            y – 4 = ¾(x-1)

            y = 3/4x + 13/4

4)         y – y1 = m(x-x1)

            4-6/4-7 = -2/-3 = 2/3

y – 4 = 2/3(x-4)

            y = 2/3x – 8/3 + 12/3

            y = 2/3x + 4/3