Skip to main content
Ch. 4 - Exponential and Logarithmic Functions
Blitzer - College Algebra 8th Edition
Blitzer8th EditionCollege AlgebraISBN: 9780136970514Non è quello che usi tu?Cambia libro di testo
Capitolo 5, Problema 37

The figure shows the graph of f(x) = ex. In Exercises 35-46, use transformations of this graph to graph each function. Be sure to give equations of the asymptotes. Use the graphs to determine graphs. each function's domain and range. If applicable, use a graphing utility to confirm your hand-drawn g(x) = ex+2

Guida verificata passo dopo passo
1
Start with the base function \(f(x) = e^{x}\), which is an exponential function with a horizontal asymptote at \(y = 0\), domain \((-\infty, \infty)\), and range \((0, \infty)\).
Identify the transformation in the given function \(g(x) = e^{x} + 2\). This represents a vertical shift of the graph of \(f(x)\) upward by 2 units.
Apply the vertical shift to the graph: every point on the graph of \(f(x)\) moves up 2 units, so the new graph of \(g(x)\) will be the same shape but shifted upward.
Determine the new horizontal asymptote by shifting the original asymptote \(y = 0\) up by 2 units, resulting in the asymptote \(y = 2\) for \(g(x)\).
State the domain and range of \(g(x)\): the domain remains all real numbers \((-\infty, \infty)\), and the range shifts up by 2, becoming \((2, \infty)\).

Risposta video verificata per un problema simile:

Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
6m

Concetti chiave

Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.

Exponential Functions and Their Graphs

An exponential function has the form f(x) = a^x, where the base a is positive and not equal to 1. The graph of f(x) = e^x is a smooth curve increasing rapidly, passing through (0,1), with domain all real numbers and range (0, ∞). Understanding this base graph is essential before applying transformations.
Video consigliato:
5:46
Graphs of Exponential Functions

Transformations of Functions

Transformations include shifts, stretches, and reflections applied to the base graph. For g(x) = e^x + 2, the graph shifts vertically upward by 2 units. Recognizing how adding constants affects the graph helps in sketching and identifying new asymptotes and ranges.
Video consigliato:
4:22
Domain & Range of Transformed Functions

Asymptotes, Domain, and Range

An asymptote is a line the graph approaches but never touches. For f(x) = e^x, the horizontal asymptote is y = 0. Vertical shifts change the asymptote accordingly, so for g(x) = e^x + 2, the asymptote is y = 2. The domain remains all real numbers, while the range shifts to (2, ∞).
Video consigliato:
4:48
Determining Horizontal Asymptotes
Pratica correlata
Domanda del libro di testo

Solve each exponential equation in Exercises 23–48. Express the solution set in terms of natural logarithms or common logarithms. Then use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution. 7(x+2)=410

770
views
Domanda del libro di testo

In Exercises 39–40, graph f and g in the same rectangular coordinate system. Use transformations of the graph of f to obtain the graph of g. Graph and give equations of all asymptotes. Use the graphs to determine each function's domain and range. f(x) = log x and g(x) = - log (x+3)

1131
views
Domanda del libro di testo

Use properties of logarithms to expand each logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator. ln(x3x2+1(x+1)4)\(\ln\) \(\left\)( \(\frac{x^3 \sqrt{x^2 + 1}\)}{(x + 1)^4} \(\right\))

981
views
Domanda del libro di testo

The figure shows the graph of f(x) = ex. In Exercises 35-46, use transformations of this graph to graph each function. Be sure to give equations of the asymptotes. Use the graphs to determine graphs. each function's domain and range. If applicable, use a graphing utility to confirm your hand-drawn h(x) = ex-1+2

781
views
Domanda del libro di testo

Evaluate each expression without using a calculator. log4 1

862
views
Domanda del libro di testo

Solve each exponential equation in Exercises 23–48. Express the solution set in terms of natural logarithms or common logarithms. Then use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution. 70.3x=813

778
views