<h2>
Answer: 20, 25</h2>
Explanation: The graphed pairs are in a pattern, in fact there are a few patterns I see.
Pattern 1: Everytime there's an ordered pair thats graphed, the distance between the numbers goes up by 1.
(4, 5) 4 and 5 is 1 number away from eachother
(8, 10) 8 and 10 are 2 numbers away from eachother
(12, 15) 12 and 15 are 3 numbers away from eachother
(16, 20) 16 and 20 are 4 numbers away from eachother
So, that means that 20, 25 would be the correct choice, because 20 and 25 are 5 numbers away from eachother.
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Pattern 2: Everytime there's an ordered pair that's graphed, the first number of every ordered pair goes up by 4
(4, 5)
(8, 10)
(12, 15)
(16, 20)
Multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, etc.
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Pattern 3: Everytime there's an ordered pair that's graphed, the second number of every ordered pair goes up by 5
(4, 5)
(8, 10)
(12, 15)
(16, 20)
Multiples of 5: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, etc.
