Solving Functions with X
Grade 9th Grade · Math · 45 min· Ccss.math.content.hsf.if.a.1 Understand That A Function From One Set (called The Domain) To Another Set (called The Range) Assigns To Each Element Of The Domain Exactly One Element Of The Range. If F Is A Function And X Is An Element Of Its Domain, Then F(x) Denotes The Output Of F Corresponding To The Input X. The Graph Of F Is The Graph Of The Equation Y = F(x). Ccss.math.content.hsf.if.a.2 Use Function Notation, Evaluate Functions For Inputs In Their Domains, And Interpret Statements That Use Function Notation In Terms Of A Context.
What's Included
Learning Objective
I can use function notation to evaluate functions for given values of x.
Warm-Up Video
Khan Academy · 11:49
Evaluating with function notation | Functions and their graphs | Algebra II | Khan Academy
Guided Notes
3 key concepts
- 1
A function is an association between two variables, where for every input x, there is a corresponding output f(x).
- 2
To evaluate a function f(x) at a specific value, such as f(7), you substitute 7 for x in the function's definition.
- 3
A valid function must produce only one f(x) value for each x value; otherwise, it is not a function.
Practice Questions
7 questions · Multiple choice & Short answer
Exit Ticket
Quick comprehension check
“Given the function f(x) = 3x - 5, what is the value of f(4)? Show your work.”
Complete Lesson Package
Get all 3 ready-to-use resources:
