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Mathematics 9 Online
OpenStudy (anonymous):

plz help fan and medal

OpenStudy (anonymous):

The graph below plots a function f(x): If x represents time, the average rate of change of the function f(x) in the first three seconds is ___.

OpenStudy (joannablackwelder):

Average rate of change is slope. Can you find slope?

OpenStudy (anonymous):

yeah but it doesn't sound right -6/4

OpenStudy (joannablackwelder):

Hm, that's not what I get. How did you get that?

OpenStudy (anonymous):

i looked at the picture then counted down 6 over 4 to the xt spot it meets the x axis

OpenStudy (joannablackwelder):

Are you looking at just the lines, or also the numbers on the lines?

OpenStudy (anonymous):

lines

OpenStudy (joannablackwelder):

We need to use the numbers that the lines represent.

OpenStudy (joannablackwelder):

Find two points

OpenStudy (anonymous):

1,100

OpenStudy (joannablackwelder):

Wait, how did you get that?

OpenStudy (joannablackwelder):

Do you know the slope formula?

OpenStudy (anonymous):

look at the pic I put up

OpenStudy (joannablackwelder):

I see the pic. But I don't get how you got that number.

OpenStudy (joannablackwelder):

The slope formula is|dw:1432663035028:dw|

OpenStudy (joannablackwelder):

Can you find two points on the line?

OpenStudy (anonymous):

im sorry i gtg

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