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Mathematics 14 Online
OpenStudy (anonymous):

Assume f(x) = -2x + 8 and g(x) = 5x. What is the value of (f - g)(2)?

hartnn (hartnn):

just plug in x= 2 in f(x) and g(x) what u get ?

hartnn (hartnn):

because (f-g)(2) = f(2) - g(2)

hartnn (hartnn):

and to get f(2) from f(x) we put x=2 in it

OpenStudy (anonymous):

so (2-2)(2)?

OpenStudy (anonymous):

wiat

hartnn (hartnn):

waiting...

hartnn (hartnn):

don't put f=2, put x=2 in f(x)

OpenStudy (anonymous):

i'm not getting it, :s.

hartnn (hartnn):

|dw:1380098392216:dw| got that ?

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