# SAT Math Multiple Choice Question 847: Answer and Explanation

Home > SAT Test > SAT Math Multiple Choice Practice Tests

### Test Information

- Use your browser's back button to return to your test results.
- Do more SAT Math Multiple Choice Practice Tests.

**Question: 847**

**7.**

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

- 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}

**Correct Answer:** C

**Explanation:**

**C**

**Difficulty:** 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 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 grid-line between 0 and 400, and the grid-lines increase by 50, so the domain is {0, 50, 100, 150, 200, 250, 300, 350, 400}, which is (C).