Question 581141
y-2x=

add 2x to both sides of the equation

y-2x+2x = 2x

y=2x

x=1, y=2
x=2, y=4
x=-1,y=-2
x=-2,y-4

Plot the points and draw the line

{{{drawing(300,300,-10,10,-10,10,circle(1,2,0.3),circle(2,4,0.3),circle(0-1,-2,0.3),circle(-2,-4,0.3),grid(1),graph(300,300,-10,10,-10,10,y=2x))}}}


cheers