X. Y

Question

8. 16
9. 18
10. 20
11. 22

Representing the function given in the table using function notation. Name the function as f and the input as x

Answer 1

Based on the table provided, we can observe the relationship between $x$ (the input) and $y$ (the output).

Here’s the table again for reference:

$$\text{Misplaced hline}$$

To express this in function notation, we can identify the relationship. Each output $y$ appears to be equal to $2x$. We can verify this:

• For $x=8$, $y=2\times 8=16$
• For $x=9$, $y=2\times 9=18$
• For $x=10$, $y=2\times 10=20$
• For $x=11$, $y=2\times 11=22$

Thus, the function can be represented as:

$$f(x)=2x$$

Here, $f$ is the name of the function, and $x$ is the input.