What is the equation of this line in slope intercept form: -8x-2y=10?
1 answer:
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First find gf(x) by substituting the expression for f(x) wherever there is an x in the g(x) function
Simplify the equation and then substitute -3 where the x's are in gf(x)
gf(x) =
gf(-3) =
=
=
Keen to note that if you worked f(-3) first and then substituted that into g(x) then you would get the same answer.