"the equation of a line in "color(blue)"slope-intercept form"the equation of a line in slope-intercept form is.
•color(white)(x)y=mx+c∙xy=mx+c
"where m is the slope and c the y-intercept"where m is the slope and c the y-intercept
"rearrange "2x-y=1" into this form"rearrange 2x−y=1 into this form
y=2x-1y=2x−1
"with slope "=2" and y-intercept "=-1with slope =2 and y-intercept =−1
"Plot the point "(0,-1)Plot the point (0,−1)
"from this point move 2 units vertically and 1 unit to"from this point move 2 units vertically and 1 unit to
"the right"the right
(0,-1)to(1,1)(0,−1)→(1,1)
"repeat this from the point "(1,1)repeat this from the point (1,1)
(0,-1)to(1,1)to(2,3)(0,−1)→(1,1)→(2,3)
"Plot these points and draw a straight line through them"Plot these points and draw a straight line through them
graph{(y-2x+1)((x-0)^2+(y+1)^2-0.04)((x-1)^2+(y-1)^2-0.04)((x-2)^2+(y-3)^2-0.04)=0 [-10, 10, -5, 5]}
