How do you find the slope and intercept to graph #2x-y= 1#?
1 Answer
Aug 13, 2018
Explanation:
#"the equation of a line in "color(blue)"slope-intercept form"# is.
#•color(white)(x)y=mx+c#
#"where m is the slope and c the y-intercept"#
#"rearrange "2x-y=1" into this form"#
#y=2x-1#
#"with slope "=2" and y-intercept "=-1#
#"Plot the point "(0,-1)#
#"from this point move 2 units vertically and 1 unit to"#
#"the right"#
#(0,-1)to(1,1)#
#"repeat this from the point "(1,1)#
#(0,-1)to(1,1)to(2,3)#
#"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]}
