kartik went to a stationary shop and purchased 3pensil,2eraser for rs.9 represnt this in. the form of linear equation in two variable and draw its graph
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let cost of pencil be x and erasers be y.
ATQ, 3x+2y=9 (cost of pencils *no. of pencils)
now we will find the solutions of the equation.
let x=3,y=0
3(3)+2(0)=9
9+0=9
9=9
let x=1,y=3
3(1)+2(3)=9
3+6=9
9=9
let x=5,y= -3
3(5)+2(-3)=9
15-6=9
9=9
so the points are
x l 3. l 1. l 5
y l 0 l 3. l. -3
now you can plot these points on the graph.
hope it helps you.
ATQ, 3x+2y=9 (cost of pencils *no. of pencils)
now we will find the solutions of the equation.
let x=3,y=0
3(3)+2(0)=9
9+0=9
9=9
let x=1,y=3
3(1)+2(3)=9
3+6=9
9=9
let x=5,y= -3
3(5)+2(-3)=9
15-6=9
9=9
so the points are
x l 3. l 1. l 5
y l 0 l 3. l. -3
now you can plot these points on the graph.
hope it helps you.
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