im really confused,i will appreciate the help thank you,XOXOXO
f(b) - f(a)
------------
..b - a
f(4) - f(0)
-------------
..4 - 0
((4)² + 8(4) - 4) - ((0)² + 8(0) - 4)
---------------------------------------------
....................4 - 0
44 + 4
----------
4 - 0
48
---- = 12
4
Average rate of change is 12
3
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Verified answer
f(b) - f(a)
------------
..b - a
f(4) - f(0)
-------------
..4 - 0
((4)² + 8(4) - 4) - ((0)² + 8(0) - 4)
---------------------------------------------
....................4 - 0
44 + 4
----------
4 - 0
48
---- = 12
4
Average rate of change is 12
3