onegirl
Consider the function f(x) below:



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onegirl
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onegirl
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if find g(4)

onegirl
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@agent0smith can u help?

onegirl
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@Spacelimbus can u help please?

Numb3r1
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I've got this.

onegirl
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ok can u help?

Numb3r1
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\[g(x)=\int\limits_{1}^{x} f(t)dt\]
Based on that, it's just the area under f(x) from 1 to 4. That should be easy to find geometrically.

onegirl
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okay i got 3 is that correct?

onegirl
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@SithsAndGiggles can u help?

Numb3r1
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I count three boxes and three triangles. That's three and three halves.

SithsAndGiggles
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@Numb3r1, you mean 4 and a half.

Numb3r1
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I like to leave a little simplification for them to do, but yes.

SithsAndGiggles
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Oh, I misread that. Sorry

SithsAndGiggles
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I thought you had said 3 and a half.

onegirl
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so its 4.5

Numb3r1
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Yup! If you have a graph and can just count the integral, do.