This document provides information about inverse functions including:
- The inverse of a function is formed by reversing the coordinates of each ordered pair. A function has an inverse only if it is one-to-one.
- The domain of the inverse function is the range of the original function, and the range of the inverse is the domain of the original.
- To find the inverse of a one-to-one function, replace f(x) with y, interchange x and y, then solve for y in terms of x and replace y with f^-1(x).
- Several examples are provided to demonstrate finding the inverse of different one-to-one functions by following the given steps.
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Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
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Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
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• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
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2. Learning
Objectives:
At the end of the lesson you will
be able to:
- Determine the inverse of a one- to-
one functions.
- Represent an inverse function
through it’s: table of values and
graphs.
- Find the domain and range of an
inverse function.
3. What is a Inverse
Function?
- A set of ordered pairs formed by
reversing the coordinates of each
ordered pair of the function.
- Remember that function ‘’ f ‘’ has
an inverse if and only if ‘’ f ‘’ is one-
to- one function.
NOTE: Not every function has an
inverse.
4. Domain and Range of Inverse
Function:
- The domain of the inverse function
is the range of the function, and the
range of the inverse function is the
domain of the function.
5. Concept
check:
- A function y = f(x) is one- to- one if a
horizontal line drawn through the graph
of the function intersects the graph at
exactly one point.
- If the horizontal line intersects the
graph in more than one point, then the
function is not one- to- one. This test is
called geometric test for a one- to- one
6. Concept
check:
A function y = f(x) is said to be one-
to- one if:
− 𝑎 ≠ 𝑏 𝑖𝑚𝑝𝑙𝑖𝑒𝑠 𝑓 𝑎 ≠ 𝑓 𝑏 𝑤ℎ𝑒𝑛𝑒𝑣𝑒𝑟
𝑎 𝑎𝑛𝑑 𝑏 𝑎𝑟𝑒 𝑖𝑛 𝑡ℎ𝑒 𝑑𝑜𝑚𝑎𝑖𝑛 𝑜𝑓 𝑓𝑢𝑛𝑐𝑡𝑖𝑜𝑛 𝑓.
− 𝑇ℎ𝑒 𝑔𝑟𝑎𝑝ℎ 𝑜𝑓 𝑎 𝑓𝑢𝑛𝑐𝑡𝑖𝑜𝑛𝑠 𝑓 𝑎𝑛𝑑 𝑓−1𝑎𝑟𝑒
Symmetric with respect to the line y = x.
7. One- to- one
Function:
Recall that a
function is a set
of ordered pairs
in which no two
ordered pairs
have the same x
and have
18. Steps in solving Inverse of a One- to-
one Function:
STEP 1: Replace f (x) by y.
STEP 2: Interchange x and y.
STEP 3: Solve for y in terms of x.
STEP 4: Replace y with 𝒇−𝟏
𝒙 .
19. Example 1: 𝐟 𝒙 = 𝟐𝒙 + 𝟒
STEP 1: Replace f
(x) by y.
𝒚 = 𝟐𝒙 + 𝟒
STEP 2: Interchange
x and y.
𝒙 = 𝟐𝒚 + 𝟒
STEP 3: Solve for y
in terms of x.
(−𝟐𝒚 = −𝒙 + 𝟒)(−𝟏)
𝟐𝒚 = 𝒙 − 𝟒)
𝟐
𝒚 =
𝟏
𝟐
𝒙 − 𝟐
STEP 4: Replace y with
𝒇−𝟏 𝒙 .
𝒇−𝟏
𝒙 =
𝟏
𝟐
𝒙 − 𝟐