What is the x and y intercept of (1,1) and (-5,7)

Answer 1

m = (7 - 1)/(-5 - 1) = 6/-6 = -1 This is the slope.

y = mx + b

y = -1x + b

1 = (-1)(1) + b

1 = -1 + b

b = 2 This is the y intercept.

y = -x + 2

Let y = 0

0 = -x + 2

x = 2 This is the x intercept.