# Question of the Day

## Can you answer today's question?

Next Tests:
12/6 , 1/24

http://sat.collegeboard.org/practice/sat-question-of-the-day
Nov
27
14,531 responses
48% correct
See Last Thirty Questions:

Mathematics > Standard Multiple Choice

In the quadratic equation above,  is a constant. The graph of the equation in the contains the points  and . What is the value of ?

# You got it!

### Explanation

Since the graph of  in the contains the point , it follows that substituting the value  into  yields . Hence , which simplifies to , or . Therefore, .

Alternatively, since the graph of  in the contains the points  and , and the coefficient of  is , the equation is equivalent to , which multiplies out to . Therefore, .

#### Buy Together, Get \$10 Off

##### Online Course

The online course includes explanations and auto essay scoring for the Study Guide's 10 practice tests.

#### The Official Study Guide for All SAT Subject Tests™:  Second Edition

Get ready for test day with a brand new edition of our best-selling SAT Subject Test Study Guide! Brought to you by the test-maker, this is the ONLY study guide with actual, previously administered tests for all 20 SAT Subjects Tests™ to provide you with the real test-taking experience.

See Inside