Question #423f5

1 Answer
Rachel
Jul 16, 2017

#-210#

Explanation:

Let's break this down

#5[color(red)(f(6))]#

#color(red)(f(x)) = color(red)(-7x)#

#color(red)(f(6)) = color(red)(-7(6))#

#color(red)(f(6)) = color(red)(-42)#

Now we have #5[color(red)(-42)]#, which is #-210#

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