Math Gr 8 Ch 6: Input and Output Values
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Questions and Answers

What type of relationship exists between two variable quantities if one is influenced by the other?

  • Dependent relationship (correct)
  • Cause-and-effect relationship
  • Random relationship
  • Independent relationship

What is the primary purpose of a flow diagram?

  • To describe the calculations in words
  • To illustrate the relationship between input and output numbers (correct)
  • To calculate the output numbers only
  • To find the operators needed to complete the flow diagram

In a flow diagram, what determines the output number for each input number?

  • The input number only
  • The operator in the flow diagram (correct)
  • The output number only
  • The relationship between input and output numbers

How can you describe the calculations in a flow diagram?

<p>Using operations such as multiplication and addition (A)</p> Signup and view all the answers

What is the purpose of analyzing the input-output relationships in a flow diagram?

<p>To determine the operators needed to complete the flow diagram (B)</p> Signup and view all the answers

What is the application of flow diagrams in the context of house costs in a new development?

<p>To calculate the cost of houses excluding the land (B)</p> Signup and view all the answers

Which of the following is an example of a variable quantity?

<p>The number of calls you make on your cell phone (C)</p> Signup and view all the answers

What is the relationship between the number of calls you make and the airtime left on your cell phone?

<p>The more calls you make, the less airtime you have left (D)</p> Signup and view all the answers

Which of the following pairs of quantities has no direct influence on each other?

<p>The length of your arm and your ability to finish Mathematics tests quickly (A)</p> Signup and view all the answers

What happens to the number of bricks required when the number of identical houses to be built increases?

<p>The number of bricks required increases (C)</p> Signup and view all the answers

Which of the following is an example of a constant quantity?

<p>The length of your arm (B)</p> Signup and view all the answers

What is the relationship between the number of learners at a school and the number of classrooms needed?

<p>More learners require more classrooms (B)</p> Signup and view all the answers

Which of the following pairs of quantities has a direct influence on each other?

<p>The number of matches in an arrangement and the number of triangles in the arrangement (B)</p> Signup and view all the answers

What happens to the number of classrooms needed when the number of learners at a school increases?

<p>The number of classrooms needed increases (B)</p> Signup and view all the answers

What is the primary purpose of identifying the relationship between variables in a flow diagram?

<p>To illustrate the calculation process and connection between input and output numbers (B)</p> Signup and view all the answers

What is the role of an operator in a flow diagram?

<p>To determine the output number for a given input number (A)</p> Signup and view all the answers

In a flow diagram, what is the result of applying an operator to an input number?

<p>The output number is determined (D)</p> Signup and view all the answers

How can the cost of houses excluding the stand be calculated using a flow diagram?

<p>By subtracting the cost of the stand from the total cost (B)</p> Signup and view all the answers

What is the purpose of describing the calculations in a flow diagram using words?

<p>To explain the calculation process and the connection between input and output numbers (C)</p> Signup and view all the answers

What is the primary purpose of creating a flow diagram for house costs in a new development?

<p>To illustrate the relationship between floor space and total cost (A)</p> Signup and view all the answers

What is the characteristic of the number of fingers on your hands?

<p>It is a constant quantity that typically remains the same (A)</p> Signup and view all the answers

Which of the following pairs of quantities has a direct influence on the number of bricks required?

<p>The number of identical houses to be built and the number of bricks required (A)</p> Signup and view all the answers

What is the characteristic of the number of calls you make?

<p>It is a variable quantity that changes with each call made (D)</p> Signup and view all the answers

Which of the following pairs of quantities has no direct influence on each other?

<p>The length of your arm and your ability to finish Mathematics tests quickly (B)</p> Signup and view all the answers

What is the relationship between the number of matches in an arrangement and the number of triangles in the arrangement?

<p>The number of matches and the number of triangles are directly related in specific patterns (A)</p> Signup and view all the answers

What happens to the airtime left on your cell phone when the number of calls you make increases?

<p>It decreases at a constant rate (C)</p> Signup and view all the answers

Which of the following pairs of quantities has a direct influence on each other?

<p>The number of identical houses to be built and the number of bricks required (D)</p> Signup and view all the answers

What is the characteristic of the length of the school day?

<p>It is a constant quantity that typically remains the same (C)</p> Signup and view all the answers

What is the primary purpose of identifying the relationships between variables in a flow diagram?

<p>To visualize the connections between input and output numbers (C)</p> Signup and view all the answers

When analyzing a flow diagram for house costs in a new development, what is the primary consideration?

<p>The relationship between floor space and total cost (A)</p> Signup and view all the answers

How can you determine the operators needed to complete a flow diagram?

<p>By analyzing the input-output relationships (A)</p> Signup and view all the answers

What is the result of applying an operator to an input number in a flow diagram?

<p>The output number is calculated (B)</p> Signup and view all the answers

What is the purpose of describing the calculations in a flow diagram using words?

<p>To clarify the relationships between input and output numbers (B)</p> Signup and view all the answers

What is the primary advantage of using a flow diagram to represent the relationship between floor space and total cost?

<p>It clarifies the connection between input and output numbers (D)</p> Signup and view all the answers

What is the relationship between the number of bricks required and the number of houses to be built?

<p>The number of bricks required increases as the number of houses to be built increases (B)</p> Signup and view all the answers

Which of the following pairs of quantities has a direct influence on each other?

<p>The number of calls you make and the airtime left on your cell phone (C)</p> Signup and view all the answers

What is the characteristic of the number of learners at a school?

<p>It is a variable quantity that changes every year (B)</p> Signup and view all the answers

What is the relationship between the number of learners at a school and the number of classrooms needed?

<p>The number of learners at a school increases as the number of classrooms needed increases (B)</p> Signup and view all the answers

What is the characteristic of the length of your arm?

<p>It is a constant quantity that remains the same (B)</p> Signup and view all the answers

Which of the following pairs of quantities has no direct influence on each other?

<p>The length of your arm and your ability to finish Mathematics tests quickly (D)</p> Signup and view all the answers

What is the relationship between the number of identical houses to be built and the number of bricks required?

<p>The number of bricks required increases as the number of identical houses to be built increases (A)</p> Signup and view all the answers

Which of the following pairs of quantities has a direct influence on each other?

<p>The number of matches in an arrangement and the number of triangles in the arrangement (D)</p> Signup and view all the answers

What is the primary purpose of creating a flow diagram for house costs in a new development?

<p>To identify the variables that influence the total cost of a house (C)</p> Signup and view all the answers

What is the role of an operator in a flow diagram?

<p>To determine the output numbers from the input numbers (D)</p> Signup and view all the answers

How can you describe the calculations in a flow diagram using words?

<p>By explaining the operations performed on the input numbers (B)</p> Signup and view all the answers

What is the result of applying an operator to an input number in a flow diagram?

<p>An output number is calculated (A)</p> Signup and view all the answers

What is the primary advantage of using a flow diagram to represent the relationship between floor space and total cost?

<p>It illustrates the relationships between variables (C)</p> Signup and view all the answers

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