Skip to main content
Ch. 4 - Exponential and Logarithmic Functions
Blitzer - College Algebra 8th Edition
Blitzer8th EditionCollege AlgebraISBN: 9780136970514당신이 사용하는 게 아니라요?교과서 변경
5장, 문제 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

검증된 단계별 안내
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 \((2, \infty)\).

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
6m
도움이 되었나요?

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

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.
추천 영상:
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.
추천 영상:
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, ∞).
추천 영상:
4:48
Determining Horizontal Asymptotes
관련 실천
교과서 질문

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
교과서 질문

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
교과서 질문

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
교과서 질문

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
교과서 질문

Evaluate each expression without using a calculator. log4 1

862
views
교과서 질문

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