Function Notation Practice
A Grade 7 math worksheet focusing on understanding and evaluating functions using function notation.
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Standards
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Function Notation Practice
Name:
Date:
Score:
Read each question carefully and follow the instructions to determine the correct answers. Show all your work where applicable.
1. In function notation, f(x) represents the value when the input is x.
2. If f(x) = 2x + 5, then f(3) means we substitute for x in the expression.
3. The notation g(t) indicates that 'g' is the name of the and 't' is the variable.
4. A function assigns exactly one value for each input value.
Given the function f(x) = 3x - 7, find:
5. f(5)
6. f(-2)
7. f(0)
Given the function h(t) = t² + 4, find:
8. h(3)
9. h(-1)
10. If g(x) = 10 - x, what is g(7)?
3
17
-7
70
11. For the function k(p) = p/2 - 1, what is k(10)?
4
5
9
10
12. If f(x) = x + 3, then f(x) is the same as y = x + 3.
True
False
13. In the expression f(5), the '5' represents the output of the function.
True
False
14. Consider the function f(x) = x + 1.
Complete the table of values:
x
f(x)
0
1
-2
Plot the points from your table on the graph below.