The turning point of a parabola is its vertex.

The vertex is
Answer:
ez
Step-by-step explanation:
14/15 - 9/15 = 1/3
1/3 = 5/15
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Hey there!!
Given:
... A=3B+7C
Subtracting 7C on both sides:
... A-7C=3B
Dividing by B on both sides:
... (A-7C)/3=B
<em>Hope my answer helps!</em>