Three points must be removed from this graph so that it will be a function
How to determine the number of points?
The points are given as:
(-3, 2), (-3, 3), (1, 4), (1, -4), (2, -4), (2, -2).
For a set of point to represent a function;
Each x coordinate must point to only one y coordinate
From the given points, we have the following highlights:
- The x value -3 has two y values (2 and 3)
- The x value 1 has two y values (4 and -4)
- The x value 2 has two y values (-4 and -2)
In the above highlights, one point each must be removed.
This means we have a total of 3 points
Hence, three points must be removed from this graph so that it will be a function
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