Question

What is an equation of the line that passes through the points \(4,1) and (8,−4)?

Answer 1

m = (1--4) / (4-8)

m = 5 / -4

m = -1.25

y = mx + c

1 = -1.25(4) + c

1= -5 + c

c = 6

y = -1.25x + 6