Question

What is an equation of the line that passes through the points (2,7) and (8,4)

Answer 1

y = - 0.5x + 8

Explanation:

`(y_(2) -y_(1) )/(x_(2) -x_(1) )`

`(7-4)/(2-8)`

`(3)/(-6)`

`-(1)/(2)`

m = - 1/2

y = - 1/2x + b

4 = - 0.5(8) + b

4 = - 4 + b

b = 8

y = - 0.5x + 8