http://prntscr.com/mvl4u6
help plz
do you know what mean average rate of change ?
yes
ok. than you chack the f(x) column what changes do you see there of f(x) between -1 and 1 ?
i supposed to use the formula i just dont know how to incorporate it
i think tis -1 and 1 are the value of x so this ,ean the average rate of f(x) when x=-1 ,x=0 and 1
i dont understand
in this table there are given two column one with values of x and the second with value of f(x) yes ?
yes
so between x=-1 and x=1 what values of f(x) you see there ?
0
no for x=-1 what is the value of f(-1) = ?
3
yes sure for x=0 the f(0)=?
11
and for x=1 so f(1)= ?
27
exactly so now just you need calcule the average rate of changes using these values of 3,11and 27
12?
how you get it ?
plugged it in the rate of change formula
do you can writing it here please ?
f(1)-f(-1)/1-(-1) corresponds to 27-3/2?
then ig i got 12
ok yes this is right do you have questions again ?
no thank you
my pleasure bye
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