I'm not sure how to give you solid proof, like an equation or something, but you can see that out of the four coordinates, two of them have the y-value of 4 and two of them have the y-value of 2. Also, there is 1.5 in between each x-value that is paired with the same y-value... if that makes sense. So for (0.5, 2) and (3, 2), there is 1.5 in between 0.5 and 3. I hope this helps! Sorry it's a bit of a weird answer
To find the answer you need to turn them into improper fractions to do that you would multiply the whole number by the denominator and add the top number. 4 3/4 = 19/4 2 2/5= 12/5 So then you would find a common denominator for 19/4 And 12/5 a common multiply of 4 and 5 is 20 so 19/4 would turn into