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In the ordered pair of numbers (-1,5), the number -1 is called the ________.

A. Abscissa

B. Ordinate

C. Quadrant

D. Coordinate

User Aviv
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1 Answer

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Final answer:

In the ordered pair (-1,5), the number -1 represents the Abscissa, which indicates a position horizontally to the left side of the coordinate system in a 2-dimensional Cartesian coordinate system.

Step-by-step explanation:

In the ordered pair of numbers (-1,5), the number -1 is called the Abscissa. The Abscissa refers to the horizontal coordinate in a 2-dimensional Cartesian coordinate system. In such a system, the Abscissa indicates the distance along the x-axis, which can be in the positive or negative x direction of the coordinate system. Since -1 is to the left of the origin on this axis, it represents a point horizontally to the left side of the coordinate system. On the other hand, the number 5 in this pair, called the Ordinate, indicates the vertical position along the y-axis, which in this case, is vertically upward in the coordinate system.

User Dave Archer
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