sirens48 sirens48

20-12-2017
Mathematics

contestada

f(x)=7x+9 find f(6c-4)

a.35c+9 b.42c+9

c.42c-19 d.42c-19

Respuesta :

20-12-2017

C & D Answer Choices Are The Same, Your Answer Is 42c-19

[tex]f(x) = \: all \: x \: in \: (7x + 9)[/tex]
[tex]f(x) = 7x + 9[/tex]
[tex]f(6c - 4) = 7x + 9[/tex]
*Distributive Property
[tex]f(6c - 4) = 7(6c - 4) + 9[/tex]
[tex]f(6c - 4) = 42c - 28 + 9[/tex]
[tex]f(6c - 4) = 42c - 19[/tex]

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