Question

Find the equation of the line below.

Answer 1

Answer:

y=2x

Step-by-step explanation:

The line passes through the origin, so the y-intercept = 0

the slope m can be found with

m = (y2-y1)/(x2-x1) = (8-2)/(2-1) = 2

Therefore the equation of the line is

y = 2x + 0 = 2x

Answer 2

Answer:

A) y = 2x

Step-by-step explanation:

We are given the points (4,8) and (1,2).

$\frac{2-8}{1-4}=\frac{-6}{-3}=\frac{6}{3}=\boxed{2}$

The line passes through the origin.

Option A should be correct.

Hope this helps.