Unit 3 Test Review
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the minimum value of a function?
Back
The minimum value of a function is the lowest point on the graph of the function. It represents the smallest output value (y-value) that the function can produce.
2.
FLASHCARD QUESTION
Front
How do you find the y-intercept of a graph?
Back
The y-intercept of a graph is found by determining the point where the graph crosses the y-axis. This occurs when the x-coordinate is 0.
3.
FLASHCARD QUESTION
Front
Evaluate f(-2) if f(x) = x + 3.
Back
f(-2) = -2 + 3 = 1.
4.
FLASHCARD QUESTION
Front
What is a function rule?
Back
A function rule is an equation that describes the relationship between input (x) and output (y) values in a function.
5.
FLASHCARD QUESTION
Front
Write a function rule for the total cost of hiring a plumber who charges a service fee plus an hourly rate.
Back
y = 40 + 25x, where y is the total cost and x is the number of hours.
6.
FLASHCARD QUESTION
Front
How do you evaluate a function at a specific value?
Back
To evaluate a function at a specific value, substitute the value into the function's equation and simplify.
7.
FLASHCARD QUESTION
Front
What does it mean for a function to be linear?
Back
A linear function is a function that graphs to a straight line, which can be expressed in the form y = mx + b, where m is the slope and b is the y-intercept.
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