10-09-2020
Mathematics

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Given f(x)=4x+5, evaluate f(4).

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10-09-2020

Answer:

21

Step-by-step explanation:

1. plug in 4 for F(x) making 4=x:

[tex]f(4)=4(4)+5[/tex]

2. multiply 4 and 4:

[tex]f(4)=4(4) +5[/tex]⇒[tex]f(4)=16+5[/tex]

3. Add 16 and 5 to get your answer:

[tex]f(4)= 16+5[/tex]⇒[tex]f(4)=21[/tex]

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