Gr 9 WISKUNDE: Hfst 7.2 Teken grafieke

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What is a key concept in understanding functions?

Variable (correct)
Slope/Gradient
Formula
Intercepts

What is the purpose of a flow diagram in representing relationships?

To provide a verbal description of the relationship
To visualize the calculations that convert input values to output values (correct)
To algebraically express the relationship between variables
To list input values and their corresponding output values

What is the formula to calculate the gradient of a line passing through two points?

Gradient = x2 - x1
Gradient = (y2 - y1) / (x2 - x1) (correct)
Gradient = (x2 - x1) / (y2 - y1)
Gradient = y2 - y1

What does the slope/gradient of a graph indicate?

How rapidly the output changes with respect to the input (C) Signup and view all the answers

What is an essential characteristic of a function?

Each input corresponds to exactly one output (C) Signup and view all the answers

What is the purpose of a graph in understanding functions?

To plot the input-output pairs on a coordinate plane (C) Signup and view all the answers

What is an output number in a function?

The result after applying the function to the input (D) Signup and view all the answers

What does continuity of a graph refer to?

Whether the graph is a continuous curve or has breaks (D) Signup and view all the answers

Which of the following is a visual representation of the calculations that convert input values to output values?

Flow Diagrams (D) Signup and view all the answers

What is the primary purpose of a graph in understanding relationships between variables?

To show how variables change in relation to each other (D) Signup and view all the answers

Which of the following is a characteristic of a function?

Each input corresponds to exactly one output (A) Signup and view all the answers

What does the intercept of a graph indicate?

The point where the graph crosses the axes (B) Signup and view all the answers

Which of the following is an example of a variable?

A quantity that can change (B) Signup and view all the answers

What is the purpose of a table in understanding relationships between variables?

To list input values and their corresponding output values (B) Signup and view all the answers

What does the shape of a graph indicate?

The type of relationship between the variables (A) Signup and view all the answers

What is a function value?

The result after applying the function to the input (D) Signup and view all the answers

What is the primary advantage of using formulas to represent relationships?

They can be used to calculate output values for any given input (B) Signup and view all the answers

Which of the following representations is most suitable for illustrating the steps to compute outputs from inputs?

Flow Diagram (D) Signup and view all the answers

What does the continuity of a graph indicate about the relationship between variables?

The graph is a continuous curve (A) Signup and view all the answers

What is the main difference between a function value and an output number?

A function value is a specific output, while an output number is any result (B) Signup and view all the answers

Which of the following best describes the relationship between variables represented by a graph?

The shape of the graph indicates the type of relationship (C) Signup and view all the answers

What is the primary purpose of using tables to represent relationships?

To list input values and their corresponding output values (B) Signup and view all the answers

Which of the following representations is most suitable for describing the relationship between variables verbally?

Verbal Description (D) Signup and view all the answers

What does the intercept of a graph indicate about the relationship between variables?

The point where the graph crosses the y-axis (B) Signup and view all the answers

What is the primary advantage of using graphs to represent relationships between variables?

To visualize the changes in variables in relation to each other. (B) Signup and view all the answers

Which of the following representations is most suitable for describing the relationship between variables algebraically?

Formula (D) Signup and view all the answers

What is the primary difference between a graph and a table in representing relationships?

A graph shows the relationship between variables, while a table shows specific input-output pairs. (C) Signup and view all the answers

What is the purpose of finding the intercepts of a graph?

To identify the input values that correspond to specific output values. (A) Signup and view all the answers

What is the primary advantage of using formulas to represent relationships?

They provide a mathematical rule for computing outputs. (A) Signup and view all the answers

What is the purpose of finding the gradient of a line?

To determine the rate of change of the output value with respect to the input value. (B) Signup and view all the answers

What is the primary difference between a flow diagram and a verbal description?

A flow diagram illustrates the steps to compute outputs from inputs, while a verbal description provides a written explanation of the relationship. (A) Signup and view all the answers

What is the primary advantage of using tables to represent relationships?

They show specific input-output pairs, making it easy to identify patterns and relationships. (B) Signup and view all the answers

Gr 9 WISKUNDE: Hfst 7.2 Teken grafieke

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Questions and Answers

What is a key concept in understanding functions?

What is the purpose of a flow diagram in representing relationships?

What is the formula to calculate the gradient of a line passing through two points?

What does the slope/gradient of a graph indicate?

What is an essential characteristic of a function?

What is the purpose of a graph in understanding functions?

What is an output number in a function?

What does continuity of a graph refer to?

Which of the following is a visual representation of the calculations that convert input values to output values?

What is the primary purpose of a graph in understanding relationships between variables?

Which of the following is a characteristic of a function?

What does the intercept of a graph indicate?

Which of the following is an example of a variable?

What is the purpose of a table in understanding relationships between variables?

What does the shape of a graph indicate?

What is a function value?

What is the primary advantage of using formulas to represent relationships?

Which of the following representations is most suitable for illustrating the steps to compute outputs from inputs?

What does the continuity of a graph indicate about the relationship between variables?

What is the main difference between a function value and an output number?

Which of the following best describes the relationship between variables represented by a graph?

What is the primary purpose of using tables to represent relationships?

Which of the following representations is most suitable for describing the relationship between variables verbally?

What does the intercept of a graph indicate about the relationship between variables?

What is the primary advantage of using graphs to represent relationships between variables?

Which of the following representations is most suitable for describing the relationship between variables algebraically?

What is the primary difference between a graph and a table in representing relationships?

What is the purpose of finding the intercepts of a graph?

What is the primary advantage of using formulas to represent relationships?

What is the purpose of finding the gradient of a line?

What is the primary difference between a flow diagram and a verbal description?

What is the primary advantage of using tables to represent relationships?

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