Given:
The point is (1,-2).
To find:
The function notation of the given point.
Solution:
If a point is (x,y), then its function notation is f(x)=y.
The given point is (1,-2).
Here, x-coordinate is 1 and y-coordinate is -2. So, the function notation of the given point is
[tex]f(x-coordinate)=y-coordinate[/tex]
[tex]f(1)=-2[/tex]
Therefore, the function notation of the given point (1,-2) is f(1) = -2.
