Question

unit test
unit test complete
1 2 3
the step function f(x) is graphed. what is the value of f(1)?
(graph of step function with x-axis from -5 to 5 and y-axis from -5 to 5)
options: 0, 1, 2, 4
mark this and return save and exit next

Explanation:

Step1: Locate x=1 on the graph

Find the vertical line x=1.

Step2: Identify the function's value at x=1

Check the step segment covering x=1; the solid dot shows y=1.

Answer:

1