Mathematics
Grade10
Easy
Question
Find the axis of symmetry of graph g(x) = -2(x - 1)2 + 4.
- x = 1
- y = 3
- x = 0
- y = 0
The correct answer is: x = 1
f(x)=-2(x-1)2 +4 is the function having vertex at (1,4)
x-1 =0 
x =1
The axis of symmetry will pass through the vertex.
As the graph is of the type f(x)=-x2 so the axis of symmetry will be parallel to y-axis.
Therefore, x=1 is the axis of symmetry.
The vertex of the graph is (1, 4).
The axis of symmetry of the graph is x = 1.
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