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Find the limit of the function by using direct substitution. limit as x approaches four of quantity x squared plus three x minus one

Respuesta :

apologiabiology
[tex] \lim_{x \to 4} f(x)=x^2+3x-1[/tex]
just subsitute
f(4)=4²+3(4)-1
f(4)=16+12-1
f(4)=28-1
f(4)=27

it approaches 27 as x approaches 4
asiafloren

Answer:

The correct answer is 27, when using direct substitution

Step-by-step explanation:

(4)^2+3(4)-1 --> 16+12-1 --> 16+11= 27

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