Answer:
The first one is wrong
Step-by-step explanation:
The student it wrong because the x is going up twice so it would be wrong.
the x going up by one makes y go up by 1.25 so they're wrong.
you could do 6 and 7.5
and then with 8 and 10.0
with those two numbers you can subtract it and then you would get 2 and 2.5 which if you divide by two you would get 1.25.
So the answer is they're wrong and that the constant is 1.25
