Idon't understand this, can anyone tell me what the answer for this question is ?

This seems like an odd question, but let's just answer.  Opposite is just another word for negative.  Since he gained 10 yards in the second quarter, the opposite of that is the answer.

-10

no, x cannot be the same number. in all of them, x is 1. for one input there is another output. g is not a function

give brainliest

one that is bigger than 3 1/2