Question

7. Most computers display images as a raster of points called pixels that can be addressed by their coordinates. These coordinates are ordered pairs and hence elements of a Cartesian product. We represent an image by coloring in the points that correspond to elements of a subset of a Cartesian product in the raster that represents the Cartesian product. Consider the raster below. 5 (1,5) (2,5) 4 (1,4) (3,4) (4,5) (5,5) 3 (2,3) (4,3) (5,4) 2 (1,2) (2,2) (4,2) (5,2) 1 (1,1) (2,1) (4,1) (5,1) 1 2 3 4 5 What is the subset of (1, 2, 3, 4, 5) \times (1, 2, 3, 4, 5) represented by the black pixels in the raster above?

          7. Most computers display images as a raster of points called pixels that can be addressed by their coordinates. These coordinates are ordered pairs and hence elements of a Cartesian product. We represent an image by coloring in the points that correspond to elements of a subset of a Cartesian product in the raster that represents the Cartesian product. Consider the raster below.
5
(1,5)
(2,5)
4
(1,4)
(3,4)
(4,5)
(5,5)
3
(2,3)
(4,3)
(5,4)
2
(1,2)
(2,2)
(4,2)
(5,2)
1
(1,1)
(2,1)
(4,1)
(5,1)
1
2
3
4
5
What is the subset of (1, 2, 3, 4, 5) \times (1, 2, 3, 4, 5) represented by the black pixels in the raster above?

7. Most computers display images as a raster of points called pixels that can be addressed by their coordinates. These coordinates are ordered pairs and hence elements of a Cartesian product. We represent an image by coloring in the points that correspond to elements of a subset of a Cartesian product in the raster that represents the Cartesian product. Consider the raster below.
5
(1,5)
(2,5)
4
(1,4)
(3,4)
(4,5)
(5,5)
3
(2,3)
(4,3)
(5,4)
2
(1,2)
(2,2)
(4,2)
(5,2)
1
(1,1)
(2,1)
(4,1)
(5,1)
1
2
3
4
5
What is the subset of (1, 2, 3, 4, 5) ×(1, 2, 3, 4, 5) represented by the black pixels in the raster above?

Added by Angela H.

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