Respuesta :
Pair of points representing parallel line to the x-axis from the given pairs is equal to (3.2, 7) and (5, 7).
As given in the question,
Line parallel to the x-axis has slope = 0
Calculate the slope of each pair of points :
a. (3.2, 7) and (5, 7)
Slope = (y₂ - y₁)/ (x₂ - x₁)
= ( 7- 7) / ( 5 - 3.2)
= 0
Pair of points represents parallel line to x-axis.
b. (8, 8.4) and (8, 8.8)
Slope = (y₂ - y₁)/ (x₂ - x₁)
= ( 8.8- 8.4) / ( 8 - 8)
= not defined
Pair of points is not parallel to x-axis.
c. (6 1/2, 12) and (6.2, 11)
Slope = (y₂ - y₁)/ (x₂ - x₁)
= ( 11- 12 / ( 6.2 - 6.5)
= 1/ 0.3
= 10/3
Pair of points is not parallel to x-axis.
Therefore, pair of points represents parallel line to x-axis is equal to
(3.2, 7) and (5, 7).
The complete question is:
For each pair of points below, think about the line that joins them. For which pairs is the line parallel to the x-axis? Circle your answer(s). Without plotting them, explain how you know.
a. (3.2, 7) and (5, 7)
b. (8, 8.4) and (8, 8.8)
c. (6 1/2, 12) and (6.2, 11)
Learn more about parallel line here
brainly.com/question/16701300
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