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Determine the interval(s) nver which the function is increasing: y = 2x 4 3x? - 12r. (a) (-», - 2)(1, 0). (h) (-∞, 20)(-7, ∞) (c) (-2, 1) («l) (20, –7) (c) Nonc of thcsc

Determine the interval(s) nver which the function is increasing: y = 2x 4 3x? - 12r. (a) (-», - 2)(1, 0). (h) (-∞, 20)(-7, ∞) (c) (-2, 1) («l) (20, –7) (c) Nonc of thcsc

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section4.5: Rational Functions
Problem 54E
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3) Determine the interval(s) nver which the function is increasing: y = (-2, 20) 20- 2x + 3x?. 12r. (a) (-», - 2)(1, ) (b) (-∞, 20)(-7, ∞) (c) (-2, 1) (el) (20, –7) (c) Nonc of thesc 3 -2 5 -10 (1,–7) 4) Given f(x) = 7x + 2, find f-'(+). (a) 7x + 2 (b) 7x + 2 (e) ? (d) (c) None of these 5) Determine the lcſt and right hehavior of the graph: y = 4x2 – 2x + 1. (a) Up to the Ieft, down to the right (b) Down to the left, up to the right (c) Up to the let, up to the right (d) Down to the leſt, down to the right (c) None of these 6) Find a polynomial function with the given zeros: 0, – 1, 2. (a) S(r) = x(r – )(r + 2) (b) f(x) = x(x + 1)(r – 2) (c) S(t) = (x + 1)(x – 2) (d) f(x) = (x + 1)(x – 2) (c) None of thesc (e)
Transcribed Image Text:3) Determine the interval(s) nver which the function is increasing: y = (-2, 20) 20- 2x + 3x?. 12r. (a) (-», - 2)(1, ) (b) (-∞, 20)(-7, ∞) (c) (-2, 1) (el) (20, –7) (c) Nonc of thesc 3 -2 5 -10 (1,–7) 4) Given f(x) = 7x + 2, find f-'(+). (a) 7x + 2 (b) 7x + 2 (e) ? (d) (c) None of these 5) Determine the lcſt and right hehavior of the graph: y = 4x2 – 2x + 1. (a) Up to the Ieft, down to the right (b) Down to the left, up to the right (c) Up to the let, up to the right (d) Down to the leſt, down to the right (c) None of these 6) Find a polynomial function with the given zeros: 0, – 1, 2. (a) S(r) = x(r – )(r + 2) (b) f(x) = x(x + 1)(r – 2) (c) S(t) = (x + 1)(x – 2) (d) f(x) = (x + 1)(x – 2) (c) None of thesc (e)
21) Use n graphing utility to graph f(x) = Se+ - 10 and approximate its zero accurate to three decimal places. (n) 1.693 (c) 0.588 (b) -0.307 (d) –1.693 (c) Nonc of thesc 22) The spread of a flu virus through a certain population is modeled by 1000 1+ 990e-0.7€ ' where y is the total number infected after / days. In how many days will 820 people be infected with the virus? (a) 10 days (b) 11 days 12 days (d) 13 days (e) None of these
Transcribed Image Text:21) Use n graphing utility to graph f(x) = Se+ - 10 and approximate its zero accurate to three decimal places. (n) 1.693 (c) 0.588 (b) -0.307 (d) –1.693 (c) Nonc of thesc 22) The spread of a flu virus through a certain population is modeled by 1000 1+ 990e-0.7€ ' where y is the total number infected after / days. In how many days will 820 people be infected with the virus? (a) 10 days (b) 11 days 12 days (d) 13 days (e) None of these
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