Engineering Mathematics Exam > Engineering Mathematics Videos > How to Interpret an Expression with Function Notation - Functions, Algebra I, Mathematics
How to Interpret an Expression with Function Notation - Functions, Algebra
Text Transcript from Video
Let P of t denote the number of people P
at the Copacabana beach in Rio de
Janeiro, t
hours past midnight on a specific day.
What does the statement P of 5
less than P of 9 mean? So before I
read these, let's think about this.
So this is the number of people five
hours past midnight on a specific day. So
this is saying that the number of people
five hours past midnight
is less than the number of people nine
hours past midnight
at Copacabana beach. So the number of people
five hours past midnight
is less than the number people nine
hours past midnight. Let's get into these choices.
The time at which there were five people
at the beach
is earlier than the time there were nine
people.
Who know? -- the five and the nine aren't
the number of people
This is the time. This is the input into
the function. The
input into the function is time. This
gives people as a function of time. You
give a time.
You give a time. This function P, it outputs
P of t, which is equal to the number of
people
number of people on the beach
at time, at time
t. So this five -- this is the input. This is
the time five hours after
I shouldn't say time t. I guess you
could say
a.m. time -- t hours past midnight at
t hours past midnight, hours past
past midnight. midnight.
So we can definitely rule this out. This
isn't talking about five people or nine
people. This is talking about
five hours after midnight is input and
how many people we have five hours after
midnight
is how many people we have nine hours
after midnight. 5 a.m.
is an earlier time the 9 a.m. Well,
that is a true statement but that's not
what this statement is
saying. It's not -- this isn't giving us
information which is no from,
I guess, how we think about time or how
we measure time.
the 5 a.m. is earlier than 9 a.m. but
that's not what this statement is trying
to say.
So rule that out.
There were more people at the beach at
9 a.m.
So to be clear, people at the beach at
9 a.m.
that's that right over here -- than there were
-- than there were at 5 a.m. -- than there were
at 5 a.m. Well, that's right over there.
And we see -- we see this quantity here
is greater than those magenta quantity
is indeed greater than this green quantity.
The green quantity
is less than the magenta quantity, so we
would definitely pick that one.
at the Copacabana beach in Rio de
Janeiro, t
hours past midnight on a specific day.
What does the statement P of 5
less than P of 9 mean? So before I
read these, let's think about this.
So this is the number of people five
hours past midnight on a specific day. So
this is saying that the number of people
five hours past midnight
is less than the number of people nine
hours past midnight
at Copacabana beach. So the number of people
five hours past midnight
is less than the number people nine
hours past midnight. Let's get into these choices.
The time at which there were five people
at the beach
is earlier than the time there were nine
people.
Who know? -- the five and the nine aren't
the number of people
This is the time. This is the input into
the function. The
input into the function is time. This
gives people as a function of time. You
give a time.
You give a time. This function P, it outputs
P of t, which is equal to the number of
people
number of people on the beach
at time, at time
t. So this five -- this is the input. This is
the time five hours after
I shouldn't say time t. I guess you
could say
a.m. time -- t hours past midnight at
t hours past midnight, hours past
past midnight. midnight.
So we can definitely rule this out. This
isn't talking about five people or nine
people. This is talking about
five hours after midnight is input and
how many people we have five hours after
midnight
is how many people we have nine hours
after midnight. 5 a.m.
is an earlier time the 9 a.m. Well,
that is a true statement but that's not
what this statement is
saying. It's not -- this isn't giving us
information which is no from,
I guess, how we think about time or how
we measure time.
the 5 a.m. is earlier than 9 a.m. but
that's not what this statement is trying
to say.
So rule that out.
There were more people at the beach at
9 a.m.
So to be clear, people at the beach at
9 a.m.
that's that right over here -- than there were
-- than there were at 5 a.m. -- than there were
at 5 a.m. Well, that's right over there.
And we see -- we see this quantity here
is greater than those magenta quantity
is indeed greater than this green quantity.
The green quantity
is less than the magenta quantity, so we
would definitely pick that one.
About this Video
Apr 29, 2026 Last updated
Related Exams
How to Interpret an Expression with Function Notation - Functions, Algebra I, Mathematics for Engineering Mathematics 2026 is part of Engineering Mathematics preparation. The notes and questions for How to Interpret an Expression with Function Notation - Functions, Algebra I, Mathematics have been prepared according to the Engineering Mathematics exam syllabus. Information about How to Interpret an Expression with Function Notation - Functions, Algebra I, Mathematics covers all important topics for Engineering Mathematics 2026 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for How to Interpret an Expression with Function Notation - Functions, Algebra I, Mathematics.
Introduction of How to Interpret an Expression with Function Notation - Functions, Algebra I, Mathematics in English is available as part of our Engineering Mathematics preparation & How to Interpret an Expression with Function Notation - Functions, Algebra I, Mathematics in Hindi for Engineering Mathematics courses. Download more important topics, notes, lectures and mock test series for Engineering Mathematics Exam by signing up for free.
Description
How to Interpret an Expression with Function Notation of covers all the important topics, helping you prepare for the Engineering Mathematics exam on EduRev.
Information about How to Interpret an Expression with Function Notation - Functions, Algebra I, Mathematics
Here you can find the How to Interpret an Expression with Function Notation - Functions, Algebra I, Mathematics defined & explained in the simplest way possible. Besides explaining types of How to Interpret an Expression with Function Notation - Functions, Algebra I, Mathematics theory, EduRev gives you an ample number of questions to practice How to Interpret an Expression with Function Notation - Functions, Algebra I, Mathematics tests, examples and also practice Engineering Mathematics tests.
Related Searches
Summary, past year papers, ppt, How to Interpret an Expression with Function Notation - Functions, mock tests for examination, MCQs, Objective type Questions, video lectures, Mathematics, Mathematics, Important questions, Exam, Free, Sample Paper, Mathematics, Viva Questions, shortcuts and tricks, Algebra I, practice quizzes, Previous Year Questions with Solutions, Semester Notes, study material, Algebra I, Extra Questions, How to Interpret an Expression with Function Notation - Functions, Algebra I, How to Interpret an Expression with Function Notation - Functions, pdf ;