Question

Help with last problem..

Answer 1

f(10)- f(0)/ 10-0 = (1.5 square root 10 +28.6) - (1.5 square root 0 +28.6)/ 10-0

Is that correct? Average rate of change was a few units ago. Need a refresher

Answer 2

@Nnesha @phi

Answer 3

yes

Answer 4

Okay. Next I get rid of the parenthesis and distribute the - correct?

Answer 5

hmmm
hold on

Answer 6

i don't bout this one but i think so i cant be too sure tho

Answer 7

= 1.5*sqrt(10)

Answer 8

?

Answer 9

yes, your idea is correct
f(10)- f(0)/ 10-0
or
\[ (1.5 \sqrt{10} + 28.6 - 1.5 \sqrt{0} - 28.6)/10 \]
notice the constant 28.6 subtracts off
also the term 1.5 sqr(0) is just 1.5*0 =0
so it simplifies to
\[ 0.15 \sqrt{10}\]
now use a calculator or type
0.15*sqrt(10)=
into google
and round the answer to the nearest 10th

Answer 10

It says .47

Answer 11

How did you get 0.15.. Shouldn't it stay as 1.5?

Answer 12

Final answer .5

Answer 13

How did you get 0.15.. Shouldn't it stay as 1.5?

the "bottom" is 10 remember?
( f(10) - f(0) )/ (10 -0)
the top simplifies to \( 1.5\sqrt{10} \)
but we divide that by 10

Answer 14

You put 0.15

Answer 15

I thought it was 1.5. But above you put 0.15

Answer 16

yes
\[ \frac{1.5\sqrt{10}}{10}= 0.15 \sqrt{10} \]

Answer 17

Ohh okay