Algebra 1 Practice Checkpoint 1

Flashcard
•
Mathematics
•
9th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
The equation represents the total cost, y, in dollars, for using a taxi service to travel a distance of x miles.
2.
FLASHCARD QUESTION
Front
What is a function in mathematics?
Back
A function is a relation where each input (x-value) has exactly one output (y-value).
3.
FLASHCARD QUESTION
Front
Which ordered pair should be removed from the set \{(-8,6),(4,6),(-5,-1),(-1,-4),(-1,7),(1,-1)\} to make it a function?
Back
Remove the ordered pair (-1,-4) because it shares the same x-value (-1) with another pair.
4.
FLASHCARD QUESTION
Front
What is the significance of the y-intercept in a linear function?
Back
The y-intercept is the value of y when x is 0, representing the starting point of the function on the y-axis.
5.
FLASHCARD QUESTION
Front
If an artist spends $7.50 on each paintbrush and $11.25 on each canvas, how can we express the total cost equation?
Back
6.
FLASHCARD QUESTION
Front
What does a correlation coefficient of 1 indicate about a scatter plot?
Back
A correlation coefficient of 1 indicates a perfect positive linear relationship between the two variables.
7.
FLASHCARD QUESTION
Front
Back
The slope of -1.50 indicates that for each ticket purchased, the amount of money decreases by $1.50.
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