Mastering Functions
Mathematics
Grade 8
11 questions
~22 mins
0 views0 downloads
About This Worksheet
A worksheet covering Functions in Algebra for Grade 8 students, focusing on understanding and applying function concepts.
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Mastering Functions
Subject: MathematicsGrade: Grade 8
Name:
Date:
Untitled Worksheet
Grade Grade 8
A
Practice Questions
Answer all questions. Show your working in the grid spaces provided.
1.
Given the function f(x) = 3x + 2, find f(4).
[2 marks]2.
Evaluate the function g(x) = x² - 5 at x = -3.
[2 marks]3.
Determine the value of h(0) if h(x) = 2x - 7.
[2 marks]4.
If p(x) = 5x and q(x) = x/2, find p(3) and q(6).
[3 marks]5.
Identify whether the relation y = 2x + 1 is a function. Explain your reasoning.
[3 marks]6.
Determine the domain and range of the function f(x) = √(x - 1).
[3 marks]7.
Solve for x: 2f(x) = 10, where f(x) = x + 4.
[3 marks]8.
A function is defined as f(x) = 4x - 1. Find the value of x when f(x) = 15.
[3 marks]9.
If the function g(x) = 2x + 3, find g(g(2)).
[3 marks]10.
A real-world scenario: The total cost C(x) in dollars to buy x items is given by C(x) = 5x + 10. How much will it cost to buy 7 items?
[2 marks]11.
Challenge: A function f is such that f(2) = 5 and f(5) = 11. If f is linear, find the formula for f(x).
[4 marks]Quick Actions
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Details
- Created
- 12/30/2025
- Updated
- 12/30/2025
- Type
- worksheet