Question: What city in the Dallas-Fort Worth metroplex opened a branch campus of Amberton University in 2006?

Context paragraphs:
Spiral Diner: The Spiral Diners are vegan restaurants located in the Dallas-Fort Worth metroplex.  There are currently three locations: Dallas, Fort Worth, and Denton.  The Fort Worth location is currently the city's only vegan restaurant.

Honors Academy: Honors Academy Charter School District was a group of state charter schools with its administrative offices in Farmers Branch, Texas, in the Dallas-Fort Worth Metroplex.

Frisco, Texas: Frisco is a city in Collin and Denton counties in Texas.  It is part of the Dallas-Fort Worth metroplex, and is approximately 25 mi from both Dallas Love Field and Dallas/Fort Worth International Airport.

Baylor University: Baylor University (BU) is a private Baptist university in Waco, Texas.  Chartered in 1845 by the last Congress of the Republic of Texas, it is the oldest continuously-operating university in Texas and one of the first educational institutions west of the Mississippi River in the United States.  Located on the banks of the Brazos River next to I-35, between the Dallas-Fort Worth Metroplex and Austin, the university's 1,000-acre campus is the largest Baptist university campus in the world.

Fort Worth Meacham International Airport: Fort Worth Meacham International Airport (Meacham Field) (IATA: FTW, ICAO: KFTW, FAA LID: FTW) is a general aviation airport in Fort Worth, Texas similar to Addison Airport on the Dallas side of the Dallas-Fort Worth metroplex.  It is at the intersection of Interstate 820 and U.S. Business Highway 287 in northwest Fort Worth, near downtown.  It has two parallel runways; the old runway 9-27 is now closed permanently.  The airport is named after former Fort Worth Mayor Henry C. Meacham.

Greater Southwest International Airport: Greater Southwest International Airport (IATA: GSW, ICAO: KGSW) , originally Amon Carter Field (ACF), is a now closed commercial airport serving Fort Worth, Texas, from 1953 until 1974.  Dallas-Fort Worth International Airport (DFW) opened in 1974 a few miles north of the airport as the planned replacement for both Greater Southwest and Dallas Love Field (DAL) as the single main airport for all scheduled airline flights for the Dallas-Fort Worth Metroplex, although Love Field survives with Southwest Airlines being the major carrier there.  The area is now a commercial/light-industrial park serving DFW International, centered along Amon Carter Boulevard, which was originally constructed from the old airport's north-south runway.

Amberton University: Amberton University is a private, nonprofit university located in Garland, Texas, in the Dallas/Fort Worth Metroplex of the United States of America.  The main campus is adjacent to Interstate 635.  Amberton is a private university that adheres to an Evangelical Christian philosophy.  The school began as part of Abilene Christian University as an extension campus from 1971 until 1982, and was initially located in Mesquite, Texas, moving to Garland in 1974.  Plans for its separation into an independent institution were initiated when the school received accreditation from the Southern Association of Colleges and Schools in 1981, and it became known as Amber University in 1982, with the "ton" being added to its name in 2001.  A branch campus was opened in Frisco, Texas in 2006.

Texas State Highway 183: State Highway 183 or SH 183 is a state highway in the Dallas-Fort Worth metroplex in Texas.  Its most heavily used section is designated Airport Freeway where it serves the southern entrance of Dallas-Fort Worth International Airport.

List of shopping malls in Texas: The history of shopping malls in Texas began with the oldest shopping center in the United States, Highland Park Village, which opened in 1931 in the Dallas–Fort Worth Metroplex.  The Dallas-Fort Worth Metroplex and Greater Houston areas are both home to numerous regional shopping malls and shopping centers located in various areas of the city.

Interstate 20 in Texas: Interstate 20 in Texas (abbreviated I-20 or IH-20) is a major east–west Interstate Highway in the Southern United States, running east from a junction with Interstate 10 east of Kent, Texas, through the Dallas-Fort Worth Metroplex to the border with Louisiana near Waskom, Texas.  The original distance of Interstate 20 was 647 mi from I-10 to the Louisiana border, reduced to the current distance of 636 mi with the rerouting of I-20 in the 1980s and 1990s.  I-20 is known as the Ronald Reagan Memorial Highway within the Dallas-Fort Worth Metroplex.

Supporting paragraphs: Amberton University Frisco, Texas
Answer: Frisco, Texas