The graph below plots a function f(x):

graph of line segment going through ordered pairs 0, 100 and 3, 220

If x represent time, the average rate of change of the function f(x) in the first three seconds is ___.

Numerical Answers Expected!

Answer for Blank 1:

Question

The graph below plots a function f(x):

graph of line segment going through ordered pairs 0, 100 and 3, 220

If x represent time, the average rate of change of the function f(x) in the first three seconds is ___.

Numerical Answers Expected!

Answer for Blank 1:

anonymous · Answer

attachment

michele_laino · Answer

your rate is equal to the slope of your line

anonymous · Answer

ok??

michele_laino · Answer

Ok!, please calculate the difference between the y's and the the difference between the x's

anonymous · Answer

310

anonymous · Answer

??

michele_laino · Answer

Sorry, it's wrong, for example the difference between the y' is 220-100=120, similarly the difference between the x's is...please try now!

anonymous · Answer

3.7....

michele_laino · Answer

Sorry, it's wrong, the difference between x's is 3-..., please complete now!

anonymous · Answer

-117...... is the answer??

michele_laino · Answer

sorry, it's wrong, the difference between the x values is 3-0=3, are you agree?

anonymous · Answer

the answer is 3 then..

michele_laino · Answer

Ok!, now you have to calculate the slope of your line, in other words a ratio between the two differences calculated before, if I call $$\Delta y=120$$ and $$\Delta x=3$$ then your rate is:$$\Delta y/\Delta x=...$$

anonymous · Answer

so then what was the answer????