Question

Complete the equation of the line through (1,4) and (2,2)

Use exact numbers.
y=?

Answer 1

y = -2x + 6

Explanation:

(y-4)/(2-4) = (x-1)/(2-1)

(y-4)/(-2) = x-1

y-4 = -2x +2

y = -2x + 6

Answer 2

Explanation:

slope = 2-4/2-1 = -2

y - 2 = -2(x - 2)

y-2 = -2x +4

y = -2x + 6