It's a nonlinear because the x and y values are not increasing at the same ratio each time. This would be an example of a linear function:
x l 1 2 3 4 5 6
y l 3 6 9 12 15 18
As x increases by 1, y increases by a multiple of 3
4 is the answer king have a good day
my friend this question is wrong how can Matthew have 87 in his bank account and spend 112 on books
