Nine data point were used to generate the scatterplot shown. Assuming all whole number values for the data points, which list correctly gives the domain of the data?

Options

A. `{10,35, 55, 70, 80, 85}`
B. `{100, 200, 300, 400, 500}`
C. `{0, 50, 100, 150, 200, 250, 300, 350, 400}`
D. `{0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100}`

Answer

C

Explanation

Difficult: Easy
Category: Problem Solving and Data Analysis/ Scatterplots
Strategic Advice: The domain of a set of data points is the set of inputs, which corresponds to the x-values of the data points when plotted on a graph. The set of the values that make up the range corresponds to the y-values. To remember this, think alphabetically: x-axis before y-axis, domain before range, so domain corresponds to x-values on a graph.
Getting to the Answer: You don''t need to write each point to find the domain. Just take note of where along the x-axis each of the points is plotted- there is a point on each grib-line between 0 and 400, and the grib-lines increase by 50, so the domain is `{0, 50, 100, 150, 200, 250, 300, 350, 400}`, which is (C).