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Mathematics 9 Online
OpenStudy (anonymous):

:DDDDDDDDD

jimthompson5910 (jim_thompson5910):

what is f(4)

jimthompson5910 (jim_thompson5910):

do you know how to find it?

OpenStudy (anonymous):

no i dont :/ that's what it says in the question

OpenStudy (anonymous):

do i multiply 3x-7 and -2x-6 together?

jimthompson5910 (jim_thompson5910):

f(x)=3x-7 f(4)=3(4)-7 f(4) = 12 - 7 f(4) = 5

jimthompson5910 (jim_thompson5910):

what is g(4)

OpenStudy (anonymous):

-2(4)-7 -8-7 =-15?

jimthompson5910 (jim_thompson5910):

g(x)=-2x-6 <<<--- it's -6 NOT -7 g(4)=-2(4)-6 g(4)=-8-6 g(4) = -14

jimthompson5910 (jim_thompson5910):

(fxg)(4) = f(4) * g(4) (fxg)(4) = 5 * (-14) (fxg)(4) = -70

OpenStudy (anonymous):

oh my mistake... ty again!!! i understand it now:D

jimthompson5910 (jim_thompson5910):

np

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