Question

f(x) = 2x + 1
x | f(x)
0 |
1 |
4 |
click to select points on the graph.
(graph with f(x) axis from 3 to 10 and grid lines)

Explanation:

Step1: Calculate f(0)

Substitute \( x = 0 \) into \( f(x)=2x + 1 \).
\( f(0)=2(0)+1 = 1 \).

Step2: Calculate f(1)

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

Step3: Calculate f(4)

Substitute \( x = 4 \) into \( f(x)=2x + 1 \).
\( f(4)=2(4)+1 = 9 \).

Answer:

For \( x = 0 \), \( f(x)=1 \); for \( x = 1 \), \( f(x)=3 \); for \( x = 4 \), \( f(x)=9 \) (So the table cells should be filled with 1, 3, 9 respectively).