Mastering Functions
Mathematics
Grade 8
12 questions
~24 mins
0 views0 downloads
About This Worksheet
A worksheet covering Functions (Algebra) for Grade 8 students. It includes basic understanding questions and application problems to deepen conceptual grasp.
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Mastering Functions
Subject: MathematicsGrade: Grade 8
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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) = 2x + 3, find the value of f(4).
[1 mark]2.
Evaluate the function g(x) = x² - 5 at x = -3.
[1 mark]3.
If h(x) = 3x - 7, what is h(0)?
[1 mark]4.
Find the value of x for which f(x) = 0, if f(x) = 5x - 10.
[1 mark]5.
Calculate f(0) for the function f(x) = -x + 8.
[1 mark]6.
Determine g(5) if g(x) = 4x - 1.
[1 mark]7.
For the function h(x) = x/2 + 3, find h(8).
[1 mark]8.
If f(x) = 3x + 2, what is the value of x when f(x) = 11?
[1 mark]9.
The function g(x) = x² + 2x. Find g(3).
[1 mark]10.
Determine whether the following is a function: The set of pairs {(1,2), (2,3), (3,4), (1,5)}.
[1 mark]AYes
BNo
11.
A water tank's height h (in meters) is modeled by h(t) = 2t + 1, where t is hours after noon. How high is the water level at 5 hours after noon?
[2 marks]12.
Challenge: A car's speed is modeled by s(t) = 60 + 5t, where t is in hours. How far does the car travel in 3 hours?
[3 marks]Quick Actions
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- Created
- 12/30/2025
- Updated
- 12/30/2025
- Type
- worksheet