What are the vertex and the axis of symmetry of the equation y = -2x2 + 8x - 10.
Solution:
Given equation
y = -2x2 + 8x - 10.
For y = a(x - h)² + k ,
The axis of symmetry is x - h = 0, vertex is (h, k).
Now we can write y = 2x² - 8x - 10 as follows
y = 2(x² - 4x + 4) - 8 - 10
or y = 2(x - 2)² -18
By comparing with the standard equations we get
Axis of symmetry is x - 2 = 0 and the vertex is (2,-18).
Therefore, the vertex and the axis of symmetry of the equation y = -2x2 + 8x - 18 is (2,-18) and the axis of symmetry is x - 2 = 0.
What are the vertex and the axis of symmetry of the equation y = -2x2 + 8x - 10.
Summary:
The vertex and the axis of symmetry of the equation y = -2x2 + 8x - 10 are x - 2 = 0 and (2, -18) respectively.
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