Answer:
1) 64
2) it a chess/checkers board pattern
3) i don't have a clue for the last question sorry :(
Step-by-step explanation:
1) there 8 squares down and 8 square side which equals 64
2)the square are black and white like you see is a chess board
3)
Well the slope would be 0 because the y doesn't change. So if y is same it is 0, if x remains the same Slope is undefined, and then there is normal slope.
