If the ordinate equals the abscissa and x {-3, 0, 12}, which of the following sets of ordered pairs satisfies the given conditions?

{(3, -3), (0, 0), (-12, 12)}
{(-3, 3), (0, 0), (12, -12)}
{(-3, -3), (0, 0), (12, 12)}

Question

If the ordinate equals the abscissa and x   {-3, 0, 12}, which of the following sets of ordered pairs satisfies the given conditions?

{(3, -3), (0, 0), (-12, 12)}
{(-3, 3), (0, 0), (12, -12)}
{(-3, -3), (0, 0), (12, 12)}

mathstudent55 · Answer

Do you know what ordinate and abscissa are?

suck_it_math · Answer

no

mathstudent55 · Answer

Here is a typical ordered pair:

(x, y)

There are several names for x and y.

(x, y)
(abscissa, ordinate)
(horizontal variable, vertical variable)
(independent variable, dependent variable)

mathstudent55 · Answer

The abscissa is the x-coordinate.
The ordinate is the y-coordinate.

suck_it_math · Answer

can you just give me the answer?

mathstudent55 · Answer

No. Instead, I can help you arrive at the correct answer.

Now think of abscissa as x and ordinate as y.
They tell you the abscissa and the ordinate are equal.
That means that for each ordered pair, the values for x and y are equal.

mathstudent55 · Answer

Example:
If in an ordered pair, x and y are equal, and you can only use 3 for x, what is the only ordered pair you can have?

mathstudent55 · Answer

|dw:1478101959144:dw|