Mastering Functions
Mathematics
Year 9
12 questions
~24 mins
0 views0 downloads
About This Worksheet
A worksheet covering Functions for Year 9 students, focusing on understanding and applying algebraic functions.
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Mastering Functions
Subject: MathematicsGrade: Year 9
Name:
Date:
Untitled Worksheet
Grade Year 9
A
Practice Questions
Answer all questions. Show your working in the grid spaces provided.
1.
Evaluate the function f(x) = 3x + 2 for x = 5.
[2 marks]2.
Find the value of x when f(x) = 11, given f(x) = 2x + 3.
[2 marks]3.
If g(x) = x^2 - 4, what is g(3)?
[2 marks]4.
Calculate f(2) if f(x) = 5x - 7.
[2 marks]5.
Simplify the expression for f(x) = 4x + 3, when x = -2.
[2 marks]6.
What is the value of x in the equation 2f(x) = 14, if f(x) = x + 3?
[2 marks]7.
Given the function f(x) = 2x, find f(7).
[2 marks]8.
If f(x) = x^2 + 2x, find f(4).
[2 marks]9.
Determine the value of x if f(x) = 0, where f(x) = 3x - 9.
[2 marks]10.
Plot and interpret the graph of y = 2x + 1 for x from -3 to 3. (Note: Use the grid provided)
[4 marks]11.
A function f is defined such that f(x) = 4 - x. Find the value of x when f(x) = 0.
[2 marks]12.
Challenge: A car rental company charges a fixed fee plus a rate per mile. If the total cost C(x) in dollars for x miles is given by C(x) = 50 + 0.2x, what is the cost for 150 miles? Show your working.
[4 marks]Quick Actions
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- Created
- 12/30/2025
- Updated
- 12/30/2025
- Type
- worksheet