kaithernnadez14 kaithernnadez14
  • 17-09-2021
  • Mathematics
contestada

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

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Аноним Аноним
  • 17-09-2021

[tex]\\ \sf\longmapsto -4y=-5x-18[/tex]

[tex]\\ \sf\longmapsto y=\dfrac{-5x-18}{-4}[/tex]

[tex]\\ \sf\longmapsto y=\dfrac{5x+18}{4}[/tex]

Now

Case-1

  • x=2

[tex]\\ \sf\longmapsto y=\dfrac{5(2)+18}{4}=\dfrac{28}{4}=7[/tex]

  • Co-ordinates are (2,7)

Case-2

  • x=-2

[tex]\\ \sf\longmapsto y=\dfrac{5(-2)+18}{4}=\dfrac{8}{4}=2[/tex]

  • (-2,2)

Case-3

  • x=6

[tex]\\ \sf\longmapsto y=\dfrac{5(6)+18}{4}=\dfrac{48}{4}=12[/tex]

  • (6,12)
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