please help

[chrome sequoia]

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[mild hatch]

(8+10+11+14+18)/(10-6) = ...

[nova cradle]

...wouldn't it just be (f(10) - f(6))/(10 - 6)?

[mild hatch]

I used to thought it that way, but from the previous questions I ever seen before I ever saw someone do it sth like that, so the correct one is still (f(10)-f(6))/(10-6) right?

[nova cradle]

...wanna try that again in English?

[mild hatch]

wdym

[nova cradle]

...I mean... that what you said... doesn't... make... sense.

[mild hatch]

tbh I think what I thought is still the correct one

[nova cradle]

Explain your reasoning.

[mild hatch]

(f(10)-f(6))/(10-6)

[mild hatch]

I mean this one

[mild hatch]

not this one

[nova cradle]

...that's... what I said the answer was, after you said the other thing.

[mild hatch]

that's what I used to thought either

[nova cradle]

...okay, "used to think".

And "either" doesn't belong in that sentence at all.

"Used to think too" would probably be closest, I guess.

[mild hatch]

okay, btw I remembered someone used integration for the numerator and divided by the range of x (delta x) in a similar problem previously to find rate of change, why is that?

[nova cradle]

...I really doubt the problem was as similar as you think it was.