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Find the equation of the axis of symmetry and vertex of the graph
1) Find the equation of the axis of symmetry of the graph y = 3x²
y = 5(x – 0)² + 0
y = 6(x – 0)² + 0
y = 3(x – 0)² + 0
y = 9(x – 0)² + 0
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Solution
Answer:
y = 3(x – 0)² + 0
Explanation:
To find the coordinates of the vertex, first we have to rewrite the equation in completion of square form y = a (x – h)² + k, in which (h, k) is the coordinates of the vertex.
x = h is the line of symmetry.
The given equation can be written as
y = 3(x – 0)² + 0
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