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4. Which of the following ordered
pairs represent points that lie on a
horizontal line?
® (-2,3), (-5,3)
® (2,3), (-2, 4)
© (-2, 3), (-2, 4)
D (2, -3), (5,3)
How do you find the ordered pairs lying on the horizontal line?

Respuesta :

The ordered pairs (-2 , 3) , (-5 , 3) represent points that lie on a horizontal line ⇒ answer A

Step-by-step explanation:

Let us explain some fact about the horizontal line

  • The line is horizontal if the y-coordinates of all points lie on the line are equal
  • The horizontal line is parallel to the x-axis ant its slope is 0
  • The equation of the horizontal line that passes through point (a , b) is y = b, because the y-coordinates of all points on the line = b

To find the ordered pairs represent points that lie on a  horizontal line, find the points with the same y-coordinates

Answer A:

∵ The ordered pairs are (-2 , 3) and (-5 , 3)

∴ x-coordinates are -2 and -5

∴ y-coordinates are 3 , 3

∵ The y-coordinates of the two ordered pairs are equal

Points (-2 , 3) and (-5 , 3) lie on a horizontal line

Answer B

∵ The ordered pairs are (2 , 3) and (-2 , 4)

∴ x-coordinates are 2 and -2

∴ y-coordinates are 3 , 4

∵ The y-coordinates of the two ordered pairs are not equal

∴ Points (2 , 3) and (-2 , 4) not lie on a horizontal line

Answer C

∵ The ordered pairs are (-2 , 3) and (-2 , 4)

∴ x-coordinates are -2 and -2

∴ y-coordinates are 3 , 4

∵ The y-coordinates of the two ordered pairs are not equal

∴ Points (-2 , 3) and (-2 , 4) not lie on a horizontal line

Answer D

∵ The ordered pairs are (2 , -3) and (5 , 3)

∴ x-coordinates are 2 and 5

∴ y-coordinates are -3 , 3

∵ The y-coordinates of the two ordered pairs are not equal

∴ Points (2 , -3) and (5 , 3) not lie on a horizontal line

The ordered pairs (-2 , 3) , (-5 , 3) represent points that lie on a horizontal line

Learn more:

You can learn more about the equation of a line in brainly.com/question/11229113

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