Test on Introduction to Linear Functions and Gradient
Introduction to Linear Functions and Gradient: A Student Guide
Test: Linear Functions and Gradient
20 questions
Question 1: The gradient of a line describes how steep it is.
A. Ano
B. Ne
Explanation: The gradient (also called slope) of a line tells us how steep it is. This is directly stated in the study materials.
Question 2: The gradient of a line is calculated by dividing the change in x by the change in y.
A. Ano
B. Ne
Explanation: The gradient is calculated by dividing the Change in y by the Change in x, not the other way around.
Question 3: In the equation y = 6x - 2, the constant term is -2.
A. Ano
B. Ne
Explanation: The study materials provide the equation y = 6x - 2 and explicitly list 'constant term' below it, indicating that -2 is the constant term in that equation.
Question 4: Does the study material provide completed coordinates for the function y = 6x - 2?
A. Ano
B. Ne
Explanation: The study material lists 'y = 6x - 2' as a variable function but only provides completed coordinates for the function 'y = 5x - 15'.
Question 5: The coordinate pair (10, 35) correctly completes the function y = 5x - 15.
A. Ano
B. Ne
Explanation: To check if (10, 35) completes the function y = 5x - 15, substitute x=10 and y=35 into the equation. This gives 35 = 5(10) - 15, which simplifies to 35 = 50 - 15. Therefore, 35 = 35, meaning the coordinate pair (10, 35) does correctly complete the function. The question states it does not, so the answer is 'no'.