2 Answers

Brett Champion · Answer 1 · 2023-11-11T12:00:58+0000

Answer:

(a) x = 6

(b) x = -5.5

Explanation:

To determine the axis of symmetry, simply find the midpoint of the x-values of each pair of ordered pairs.

(a) 3, 2) (9, 2)

$\sf midpoint \ of \ x \ values=(9-3)/(2)+3=6$

⇒ axis of symmetry: x = 6

(b) (-18, 3) (7, 3)

$\sf midpoint \ of \ x \ values=(7-(-18))/(2)+(-18)=-5.5$

⇒ axis of symmetry: x = -5.5

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