Question

2.3.3 quiz: graphs of functions
a sprinter ran a race in 11 seconds. what is the domain of this graph?
distance from the start
times (seconds)
a. all real numbers
b. integers from 0 to 11
c. all positive integers
d. real numbers from 0 to 11

Explanation:

Step1: Define domain of a graph

The domain of a graph is the set of all valid input (x-axis) values. For this graph, the x-axis represents time in seconds.

Step2: Identify valid time values

The sprinter runs for 11 seconds, starting at 0 seconds. Time can be any real number (not just integers) between these two points, since time is continuous.

Step3: Match to correct option

The set of real numbers from 0 to 11 matches the valid input values for the graph.

Answer:

D. Real numbers from 0 to 11