Question

Write an equation of the line passing through the points (3,1) and (−1, −7).

Answer 1

The answer is y = 2x - 5.

Answer 2

Answer:

y=2x-5

Step-by-step explanation:

$\frac{1-(-7)}{3-(-1)}=\frac{8}{4} = 2\\\\(3,1)\\y=2x+b\\1=2(3)+b\\1=6+b\\1-6=b\\-5=b\\\\OR\\\\(-1, -7)\\y=2x+b\\-7=2(-1)+b\\-7=-2+b\\-7+2=b\\-5=b$