Can someone please answer this?

x=-1

Step-by-step explanation:

-4x=y+8

-8-4x=y

7x-2y=1

7x-2(-8-4x)=1

7x+16+8x=1

15×+16=1

15x=-15

x=-1

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

  b.   the average rate of change of f(x) is less than the average rate of change of g(x).

step-by-step explanation:

since the length of the interval is the same in each case, we only need to compare the change in y-value to see which is greater.

so the change in y-value for function f is (6 )) = 9.

the table tells us

so the change in y-value for function g is (31 -1) = 30.

the change in y-value of f(x) on the interval is less than the change in y-value of g(x) on the same interval, so the average rate of change of f(x) is less than the average rate of change of g(x).