Question

Seven-year-old students at an elementary school were given a 10-yard head start in a race. The graph shows how far the average student ran in 30 seconds. A line graph with Distance, in yards, on the x axis and Age of Runner on the y axis. The x axis has a scale from 0 to 80 in increments of 10. The y axis has a scale of 0 to 8 in increments of 2. A straight line connecting 10, 7 and 60, 7 is drawn. Which statement best describes the domain of the function represented in the graph? 10 ≤ x ≤ 60, or x is from 10 to 60 7 ≤ x ≤ 60, or x is from 7 to 60 7 ≤ x ≤ 10, or x is from 7 to 10 0 ≤ x ≤ 10, or x is from 0 to 10

Answer 1

a

Explanation:

Answer 2

A: 10 ≤ x ≤ 60, or x is from 10 to 60

Explanation:

The domain of the function is, by definition, the values in the x-axis where the function exists, or in other words, has a corresponding value in the y-axis.

The only defined values for x in this problem are from 10 to 60, which have a value of 7 constant in the y-axis.

Please find attached a graph for the function described.