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anonymous
 one year ago
How would I determine an integral function using a graph?
anonymous
 one year ago
How would I determine an integral function using a graph?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0This question in particular:

FireKat97
 one year ago
Best ResponseYou've already chosen the best response.1the definite integral of a function between two numbers, is the area under the graph of the function between the two numbers. Ie, in your question, the definite integral you need to find is the area of the graph under f(x) between the points x= 0 and x = 28. Because your graph is essentially composed of straight lines, you can manually find the area by breaking it up into rectangles and triangles and sum the two areas together. Note, the larger (area 1) is a positive "area" (above the x axis) whereas the smaller area (area 2) is a "negative" area (under the xaxis) so when you go to "sum" them together do area 1 + ( area 2)

FireKat97
 one year ago
Best ResponseYou've already chosen the best response.1Hope that makes sense :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Oh, I think I get it! So just quickly looking at the graph, would the answer just be 18 then? :P @FireKat97

FireKat97
 one year ago
Best ResponseYou've already chosen the best response.1Actually @Clarence I meant something like this...

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Oh right, so it'd be 32 then :p

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So for area 1, it'd be 7x3+1/2(12x3) and area 2 as 5+2 right? @FireKat97

FireKat97
 one year ago
Best ResponseYou've already chosen the best response.1Yup, thats the basic idea. but using fractions will add accuracy :)
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