Question

Complete the point-slope equation of the line through (-1,6) (1,5) . Use exact numbers. y-6=

Answer 1

y - 6 = -0.5*(x + 1)

The gradient -0.5 is obtained from taking (5 - 6)/(1 - -1)

Answer 2

First, let's find the slope:
5-6 = -1
1 - (-1) = 2
-1/2 or -0.5

There are two choices for an equation:
y - 5 = -0.5(x - 1)
or
y - 6 = -0.5(x + 1)