We are given three tables of values for three functions, $f(x)$, $g(x)$, and $h(x)$. We need to determine whether each table represents a function.
2025/7/3
1. Problem Description
We are given three tables of values for three functions, , , and . We need to determine whether each table represents a function.
2. Solution Steps
A relation is a function if each input (-value) corresponds to exactly one output (-value). In other words, there should be no repeated -values with different -values.
For :
The -values are 1, 2, 3, 4, 5, 6, and the -values are 72, 50, 32, 18, 8,
2. All the $x$-values are distinct, so this table represents a function.
For :
The -values are 1, 2, 3, 4, 5, 6, and the -values are 128, 150, 168, 182, 192,
1
9
8. All the $x$-values are distinct, so this table represents a function.
For :
The -values are 1, 2, 3, 4, 5, 6, and the -values are 2, 8, 18, 32, 50,
7
2. All the $x$-values are distinct, so this table represents a function.
3. Final Answer
is a function.
is a function.
is a function.