Question

Write an equation of the form y = mx for the line shown below. (-1,-2) Answer here

Answer 1

Answer:

$y=2x$

Step-by-step explanation:

Equation of a Line

Two variables x and y are linearly dependent when they are related by the equation

$y=mx+b$

where m is the slope and b is the y-intercept, or the value of y when x equals 0. We are given a particular equation for the line such as b=0, so we only need one point to compute m. That point is (-1,-2):

$-2=m(-1)$

It follows that

$m=2$

Thus the equation of the line is

$\boxed{y=2x}$