Question

A line passes through (−1, 5) and (1, 3).

Which answer is the equation of the line?

Answer 1

Answer: x+y = 4

Step-by-step explanation: i took the test

Answer 2

d) x+y = 4

Explanation:

(−1, 5) and (1, 3)

y = mx + b

m = (3 - 5) / (1 - (-1)) = -2 / 2 = -1

b = y - mx = 3 - ((-1) x 1) = 4

equation: y = -x + 4