1. Which of the following must be equal to lim fx so that the limit exists x 25+ at the point with x-coordinate 25? f(25)

Calculus: Early Transcendentals
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Author:James Stewart
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Chapter1: Functions And Models
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Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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1. Which of the following must be equal to lim f
ƒ (₂)
x 25+
at the point with x-coordinate 25?
f(25)
O
Nothing else is needed, one limit is enough
lim fx
x→25¯
8
so that the limit exists
Transcribed Image Text:1. Which of the following must be equal to lim f ƒ (₂) x 25+ at the point with x-coordinate 25? f(25) O Nothing else is needed, one limit is enough lim fx x→25¯ 8 so that the limit exists
2. Under what condition(s) is the tangent to f(x) at (a, ƒ(a)) horizontal?
f'(a) <0
f'(a)>0
f'(a)=0
f'(a) is undefined
Transcribed Image Text:2. Under what condition(s) is the tangent to f(x) at (a, ƒ(a)) horizontal? f'(a) <0 f'(a)>0 f'(a)=0 f'(a) is undefined
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