Question

Plot 4 points which satisfy y=2x+1 and then join them to have a graph of linear equation y=2x+1

Answer 1

y=2x+1

let x=1

y=2(1)+1

y=2+1

y=3

(1,3),plot on graph paper in Cartesian plane

let=2

y=2(2)+1

y=4+1

y=5

(2,5) plot on graph paper in Cartesian plane

let x=-1

y=2(-1)+1

y=-2+1

y=-1

(-1,-1) plot on graph sheet in Cartesian plane

x=-2

y=-2(-2)+1

y=4+1

y=5

(-2,5) plot on graph sheet in Cartesian plane