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Alinara [238K]
3 years ago
9

Who knows how about to do this??

Mathematics
1 answer:
Nataly_w [17]3 years ago
4 0

Answer:

f(4) = 2

Step-by-step explanation:

1. f(n)=5n+8

f(4)=\\\\f(-2)

Replace n with 4; solve

f(n)=5n+8\\\\f(n)=5(4)+8\\\\5(4)\\\\20+8\\\\28

Therefore, f(4) = 28

Replace n with -2

f(n)=5n+8\\\\f(n)=5(-2)+8\\\\5(-2)\\\\-10+8\\\\-2

Therefore, f(-2) = -2

2.  f(n)=-2n+1

f(10)=\\\\f(-1)=

Replace n with 10; solve

f(n)=-2n+1\\\\f(n)=-2(10)+1\\\\-2(10)\\\\-20+1\\\\-19

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