Question

f(x) = x + 1
x | f(x)
1 |
2 |
6 |
7 |
9 |
click to select points on the graph.
(graph with f(x) axis from 5 to 10 and grid lines)

Explanation:

Step1: Substitute \( x = 1 \)

Substitute \( x = 1 \) into \( f(x)=x + 1 \), we get \( f(1)=1 + 1=2 \).

Step2: Substitute \( x = 2 \)

Substitute \( x = 2 \) into \( f(x)=x + 1 \), we get \( f(2)=2 + 1=3 \).

Step3: Substitute \( x = 6 \)

Substitute \( x = 6 \) into \( f(x)=x + 1 \), we get \( f(6)=6 + 1=7 \).

Step4: Substitute \( x = 7 \)

Substitute \( x = 7 \) into \( f(x)=x + 1 \), we get \( f(7)=7 + 1=8 \).

Step5: Substitute \( x = 9 \)

Substitute \( x = 9 \) into \( f(x)=x + 1 \), we get \( f(9)=9 + 1=10 \).

Answer:

For \( x = 1 \), \( f(x)=2 \); for \( x = 2 \), \( f(x)=3 \); for \( x = 6 \), \( f(x)=7 \); for \( x = 7 \), \( f(x)=8 \); for \( x = 9 \), \( f(x)=10 \)