Question

which of the following pairs of ordered pairs represents points that lie on the same horizontal line?
a. (-2, 3), (-5, 3)
b. (2, 3), (-2, 4)
c. (-2, 3), (-2, 4)
d. (2, -3), (5, 3)

Explanation:

Step1: Recall horizontal line rule

Points on the same horizontal line have identical $y$-coordinates (the second value in each ordered pair $(x,y)$).

Step2: Check each option

• Option A: $(-2, 3), (-5, 3)$ → Both have $y=3$
• Option B: $(2, 3), (-2, 4)$ → $y$-values are 3 and 4 (different)
• Option C: $(-2, 3), (-2, 4)$ → $y$-values are 3 and 4 (different)
• Option D: $(2, -3), (5, 3)$ → $y$-values are -3 and 3 (different)

Answer:

A. (-2, 3), (-5, 3)