Question #a8d79

2 Answers
Oct 16, 2017

y=1/2x

Explanation:

there are several ways of doing this.

we can use

y-y_1=m(x-x_1)

where

m=" the gradient "=(y_2-y_1)/(x_2-x_1)

(x_1,y_1)" is a known coordinate on the line"

we have

m=(1-0)/(2-0)=1/2

y-y_1=m(x-x_1)

=>y-0=1/2(x-0)

:.y=1/2x

or

2y-x=0

Oct 16, 2017

:.y=1/2x

Explanation:

Find the gradient color(pink)m of the line by using the formula (y_2-y_1)/(x_2-x_1).

(1-0)/(2-0)=1/2

Using the equation y-y_1=color(pink)m(x-x_1), substitute the values of one pair of coordinates.

y-1=1/2(x-2)
:.y=1/2x