Math Grade 8 Quiz Constructing and Interpreting Linear Functions – 8.F.B.4
This standard focuses on building a function that shows a linear relationship between two quantities. The aim is to determine the rate of change (slope) and the starting value (yintercept) of the function. This can be done using various forms of data, such as descriptions, coordinate points, tables, or graphs. Once the function is determined, it’s essential to understand the realworld implications of the rate of change and the initial value in the context of the situation being modeled.
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Question 1 of 10
1. Question
Which of the following describes the rate of change of a function?
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Question 2 of 10
2. Question
John saves $5 every week. Which equation best represents the total amount, y, John has saved after x weeks?
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Question 3 of 10
3. Question
If a graph passes through the points (2,6) and (4,10), what is its rate of change?
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Question 4 of 10
4. Question
In a table of values, if the yvalue increases by 4 each time the xvalue increases by 2, what is the rate of change?
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Question 5 of 10
5. Question
What does the yintercept of a linear function represent?
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Question 6 of 10
6. Question
A company charges a base fee of $50 and then $20 for each hour of service. Which equation represents the total cost, y, for x hours of service?
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Question 7 of 10
7. Question
A graph of a function passes through the point (0,3). What does this point represent?
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Question 8 of 10
8. Question
The graph of a function shows that for every 3 units increase in x, y increases by 6 units. What is the rate of change?
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Question 9 of 10
9. Question
Which of the following statements is true about a function with a rate of change of zero?
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Question 10 of 10
10. Question
A function has a rate of change of 4 and passes through the point (1,7). What is its yintercept?
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