EOC Review: Applications of Linear Functions

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•
Mathematics
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is a linear function?
Back
A linear function is a function that can be graphically represented as a straight line. It has the form f(x) = mx + b, where m is the slope and b is the y-intercept.
2.
FLASHCARD QUESTION
Front
What does the slope of a linear function represent?
Back
The slope of a linear function represents the rate of change of the dependent variable (y) with respect to the independent variable (x). It indicates how much y changes for a unit change in x.
3.
FLASHCARD QUESTION
Front
What is the y-intercept in a linear function?
Back
The y-intercept is the value of y when x is 0. It is the point where the line crosses the y-axis.
4.
FLASHCARD QUESTION
Front
How do you interpret a strong positive correlation coefficient (r)?
Back
A strong positive correlation coefficient (r close to 1) indicates that as one variable increases, the other variable also tends to increase.
5.
FLASHCARD QUESTION
Front
How do you interpret a strong negative correlation coefficient (r)?
Back
A strong negative correlation coefficient (r close to -1) indicates that as one variable increases, the other variable tends to decrease.
6.
FLASHCARD QUESTION
Front
What does a correlation coefficient of 0 indicate?
Back
A correlation coefficient of 0 indicates no linear relationship between the two variables.
7.
FLASHCARD QUESTION
Front
What is the formula for calculating the total cost (y) for purchasing x tickets if there is a flat fee?
Back
The total cost can be represented as y = mx + b, where m is the cost per ticket and b is the flat fee.
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