Question

Graph the equation by plotting three points. If all three are correct, the line will appear. -4y = -5x – 18

Answer 1

`\\ \sf\longmapsto -4y=-5x-18`

`\\ \sf\longmapsto y=(-5x-18)/(-4)`

`\\ \sf\longmapsto y=(5x+18)/(4)`

Now

Case-1

• x=2

`\\ \sf\longmapsto y=(5(2)+18)/(4)=(28)/(4)=7`

• Co-ordinates are (2,7)

Case-2

• x=-2

`\\ \sf\longmapsto y=(5(-2)+18)/(4)=(8)/(4)=2`

• (-2,2)

Case-3

• x=6

`\\ \sf\longmapsto y=(5(6)+18)/(4)=(48)/(4)=12`

• (6,12)