Question

Compute the average rate of change of the function f(x)= x^2 + 2x on the interval from x = 11 to x =4

Answer 1

please show all calc involved

Answer 2

i dont have that option

Answer 3

my options are 7, -7, 4 ,21 , 10

can you please show steps also

Answer 4

f(11)=143
f(4)=24
avg rate of change FROM 11 TO 4 = (f(4) - f(11) ) / 7
= -119/7 = -17
Not one of your options.
Are you sure you have the details exactly right?

Answer 5

crap, x actually =1 not 11 so its

x= 1 to x= 4

Answer 6

much better!

Answer 7

f(1)=3
answer is (24-3)/3 = 21/3 = 7

Answer 8

thanks for the help

Answer 9

you're welcome