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 (y-intercept) 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 real-world 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 y-value increases by 4 each time the x-value increases by 2, what is the rate of change?
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Question 5 of 10
5. Question
What does the y-intercept 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 y-intercept?
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