Recognizing Functions and Notation- Activity 1

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•
Mathematics
•
8th - 9th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Is this a function?
Back
A function is a relation where each input has exactly one output. If an input corresponds to multiple outputs, it is not a function.
2.
FLASHCARD QUESTION
Front
What is the slope of the line through (2, 7) and (4, 17)?
Back
The slope (m) is calculated as (y2 - y1) / (x2 - x1). For points (2, 7) and (4, 17), m = (17 - 7) / (4 - 2) = 10 / 2 = 5.
3.
FLASHCARD QUESTION
Front
Does this table represent a function?
Back
A table represents a function if each input (x-value) corresponds to exactly one output (y-value).
4.
FLASHCARD QUESTION
Front
For what value of x does f(x) = -2?
Back
To find x when f(x) = -2, you need to solve the equation for x. In this case, x = -5.
5.
FLASHCARD QUESTION
Front
Which equation represents the function displayed in the graph above?
Back
To determine the equation of a line from a graph, identify the slope and y-intercept. The correct equation is y = 2x + 1.
6.
FLASHCARD QUESTION
Front
What is a function?
Back
A function is a special relationship between values where each input has a single output.
7.
FLASHCARD QUESTION
Front
What is the vertical line test?
Back
The vertical line test is a method to determine if a curve is a function. If a vertical line intersects the curve at more than one point, it is not a function.
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