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Mathematics 18 Online
OpenStudy (anonymous):

Identify the domain of the combined function h(x) = f(x) · g(x), if the domain of f(x) is (4, 4.5], and the domain of g(x) is [4, 4.5).The domain of h(x) is:

jimthompson5910 (jim_thompson5910):

one way to do this to draw two number lines. One number line for the domain of f, the other for the domain of g

jimthompson5910 (jim_thompson5910):

like this |dw:1431816504852:dw|

jimthompson5910 (jim_thompson5910):

actually let me redo the scale |dw:1431816690152:dw|

jimthompson5910 (jim_thompson5910):

are you following so far?

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