Ask your own question, for FREE!
Mathematics 20 Online
OpenStudy (fabgirl1994):

What is the domain of the following parabola?

OpenStudy (mathstudent55):

The domain is the set containing all the x-coordinates.

OpenStudy (fabgirl1994):

x ≥ 1 x ≤ 1 All real numbers y ≤ 2

OpenStudy (fabgirl1994):

OpenStudy (mathstudent55):

What are all the values that the x-coordinate can have?

OpenStudy (fabgirl1994):

Are you talking about where the line meets an exact coordinate?

OpenStudy (mathstudent55):

No. The graph you see represents a parabola. A parabola extends forever. Your parabola has a maximum value of y = 2, and it extends down forever. As it goes down, into lower and lower y-coordinates, it gets wider and wider forever.

OpenStudy (mathstudent55):

The domain is the set of all x-coordinates. That deals with the width of the parabola. What is the overall width of the parabola?

OpenStudy (fabgirl1994):

5 coordinates

OpenStudy (mathstudent55):

Don't confuse the small part of the parabola you see and the real parabola this graph represents. The real parabola extends downward forever. It also extends right and left forever. It only goes up to y = 2.

OpenStudy (fabgirl1994):

Okay got it

OpenStudy (mathstudent55):

The arrow show that the parabola goes on forever. |dw:1460876481185:dw|

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!