Evaluating Functions

Flashcard
•
Mathematics
•
8th - 10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is a function?
Back
A function is a relation between a set of inputs and a set of possible outputs where each input is related to exactly one output.
2.
FLASHCARD QUESTION
Front
What does f(x) represent in a function?
Back
f(x) represents the output of the function f for a given input x.
3.
FLASHCARD QUESTION
Front
How do you evaluate a function at a specific point?
Back
To evaluate a function at a specific point, substitute the value of the input into the function's equation and simplify.
4.
FLASHCARD QUESTION
Front
What is the value of f(x) = x^2 when x = 3?
Back
f(3) = 3^2 = 9.
5.
FLASHCARD QUESTION
Front
What is the value of f(x) = 3x - 5 when x = -1?
Back
f(-1) = 3(-1) - 5 = -3 - 5 = -8.
6.
FLASHCARD QUESTION
Front
What is the value of f(x) = 2x + 3 when x = 2?
Back
f(2) = 2(2) + 3 = 4 + 3 = 7.
7.
FLASHCARD QUESTION
Front
What is the value of f(x) when f(x) = 0?
Back
The value of x that makes f(x) = 0 is the x-intercept of the function.
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