Evaluating Functions (Junior Cert Mathematics): Quizzes

📚Quizzes
Revision NotesModel AnswersQuizzesFlashcardsExam Questions
Evaluating Functions
Sign up to keep practising.Create a free account to play more quizzes and track your progress.

Practise the questions

9 questions from this quiz

Show

What does evaluating a function mean?

Finding the output for a specific input

What does the notation f(3)f(3) mean?

Find the value of the function at x=3x=3

What should you do with xx when evaluating a function for a specific input?

Substitute the input value for xx

If f(x)=2x2+3f(x) = 2x^2 + 3, what is f(3)f(3)?

2121

If g(x)=4x−5g(x) = 4x - 5, what is g(2)g(2)?

33

When evaluating f(x)=2x2+3f(x) = 2x^2 + 3 for x=3x=3, what is the first calculation?

32=93^2 = 9

For f(x)=2x2+3f(x) = 2x^2 + 3, after squaring 3 to get 9, what is the next step?

Multiply by 2 to get 18

What is emphasised as important when performing operations in evaluating functions?

Perform operations in the right order

What is recommended after evaluating a function?

Double-check your calculations

Explore Junior Cert Mathematics Revision Notes by Topics

Functions/Graphs

The Basics

Types of Graphs

Drawing/Interpreting Graphs

Explore Junior Cert Mathematics Model Answers by Topics

Functions/Graphs

The Basics

Types of Graphs

Drawing/Interpreting Graphs

Explore Junior Cert Mathematics Flashcards by Topics

Functions/Graphs

The Basics

Types of Graphs

Drawing/Interpreting Graphs

Explore Junior Cert Mathematics Exam Questions by Topics

Functions/Graphs

The Basics

Types of Graphs

Drawing/Interpreting Graphs

Join 100,000+ Junior Cert students studying Quizzes with us.

Select your subjects, and get access to A+ resources today.