Can you evaluate f(-2) for f(x)= -3x + 8?

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Answer 1 · 2018-04-15T16:20:56

#f(-2) = 14 #

for this all you are doing is replacing any # x # within the function with #-2 #

#=> f(-2) = -3 ( -2 ) + 8 #

#=> 6 + 8 #

#=> 14 #

Answer 2 · 2018-04-15T16:30:04

#14#

#"to evaluate "f(-2)" substitute "x=-2" into "f(x)#

#rArrf(color(red)(-2))=(-3xxcolor(red)(-2))+8=6+8=14#