Use the method of quadrature to estimate the area under the curve y= -3/5x^2 =7 that is above the x-axis from x = 0 to x = 2.

Question

ganeshie8 · Answer

Is this the curve :

 y= -3/5x^2  + 7 

?

anonymous · Answer

Yeah sorry I was typing fast.

ganeshie8 · Answer

okay :) you just need to count the "number of squares" under the curve.

have u graphed it already ?

anonymous · Answer

No. let me get my calculator (:

ganeshie8 · Answer

calculator may not be good to visualize/count squares.
graph it in geogebra/desmos maybe....

anonymous · Answer

I counted 7 but that isn't one of the answers

ganeshie8 · Answer

attachment

ganeshie8 · Answer

^ there is the graph, 
green is the area u want to estimate.. .

count agian :)

anonymous · Answer

so it's 12.2?

ganeshie8 · Answer

looks good... 
something between 12 and 13 mostly..

anonymous · Answer

Ok thank you (:

ganeshie8 · Answer

np :)

anonymous · Answer

Have a nice night/afternoon/morning! (:

anonymous · Answer

But one more question please?

ganeshie8 · Answer

ty :D you too !

ganeshie8 · Answer

yeah... shoot :)

anonymous · Answer

Can you please explain the method?

ganeshie8 · Answer

method of quadrature ?

anonymous · Answer

Yes please (:

ganeshie8 · Answer

sure :) the name just sounds fancy... but the method is very basic

ganeshie8 · Answer

you measure ur house area in terms of "square fee", right ?

anonymous · Answer

Yep.

ganeshie8 · Answer

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ganeshie8 · Answer

Suppose you can fit 200 "square tiles" in ur house area.

ganeshie8 · Answer

what will be the area of land occupied by ur house ?

ganeshie8 · Answer

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