# SAT Math Multiple Choice Question 920: 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: 920**

**4.**

The complete graph of the function *f* is shown in the *xy* plane above. Which of the following is/are equal to –2?

I. *f*(–1)

II. *f*(0)

III.

- A. I only
- B. II only
- C. II and III only
- D. I, II, and III

**Correct Answer:** C

**Explanation:**

**C**

**Difficulty:** Medium

**Category:** Passport to Advanced Math / Functions

**Strategic Advice:** When a function is graphed on a coordinate plane, the points take on the form (*x*, *f*(*x*)), so *f*(*x*) is just another way of saying *y*.

**Getting to the Answer:** Read the graph to find the *y*-coordinates that correspond to the given *x*-coordinates (the numbers inside the parentheses) in I, II, and III. The points on the graph of *f* with *x*-coordinates -1, 0, and (or 3.5) are (-1, - 1.5), (0,-2), and (3.5, -2). Therefore, of the values given, only 0 (II) and (III) are equal to -2, making (C) correct.