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Function Notation - Algebra 1 Flashcards

12 Questions

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Function Notation - Algebra 1 Flashcards

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Questions and Answers

If f(x) = x + 2, then what is f(-2)?

-2

If f(x) = -3x + 2, then what is f(7)?

-19

If f(x) = \frac{1}{2}x - 10, then what is f(30)?

If f(x) = x + 2, then what is f(-9)?

-7 Signup and view all the answers

If f(x) = 2x, then what is f(1)?

2 Signup and view all the answers

If f(x) = 2x, then what is f(-4)?

-8 Signup and view all the answers

If f(x) = 4x + |x|, then what is f(-2)?

-6 Signup and view all the answers

If f(x) = 5x + 1, then what is f(2)?

11 Signup and view all the answers

Find f(4).

-1 Signup and view all the answers

Find f(2).

3 Signup and view all the answers

Find f(-1).

-2 Signup and view all the answers

Find f(0).

-3 Signup and view all the answers

Study Notes

Function Notation Basics

Function notation expresses a relationship between an input (x) and output (f(x)).
To evaluate a function, substitute the input value for x in the function’s expression.

Evaluating Functions

For the function f(x) = x + 2, substituting -2 gives f(-2) = 0.
For f(x) = -3x + 2, substituting 7 results in f(7) = -19.
For f(x) = 1/2x - 10, substituting 30 yields f(30) = 5.
For f(x) = x + 2 with an input of -9 results in f(-9) = -7.

More Function Evaluations

For the function f(x) = 2x, substituting 1 gives f(1) = 2.
The same function with an input of -4 results in f(-4) = -8.
For f(x) = 4x + |x|, substituting -2 gives f(-2) = -6.
For f(x) = 5x + 1, substituting 2 gives f(2) = 11.

Additional Function Values

Evaluating f(4) from a certain function yields -1.
Finding f(2) gives a result of 3.
For an input of -1, evaluating yields f(-1) = -2.
The value of f(0) results in -3, demonstrating the function's behavior at zero.

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Description

Test your understanding of function notation with these Algebra 1 flashcards. Each card presents a function and asks you to solve for specific values. Perfect for reinforcing your skills in evaluating functions.