Question

the step function $f(x)$ is graphed.
what is the value of $f(1)$?
○ 0
○ 1
○ 2
○ 4

Explanation:

Step1: Locate x=1 on the x-axis

Find the position $x=1$ on the horizontal axis.

Step2: Check the step function's value

At $x=1$, the closed (filled) dot is on the segment where $y=0$.

Answer:

0