Two lines perpendicular to one another can represent a coordinate system. a. 2 b. 3 c. 4

B. 3

Explanation:

The Cartesian plane consists of two perpendicular lines called x-axis and y-axis which, together with the intersection point (the origin), define a two-dimensional coordinate system that makes it possible to specify the location of points in the plane. Following this same line of reasoning, to describe the location of a point in space we need to introduce a third dimension into the two-dimensional system. For this, from the Cartesian plane, we define a z axis (perpendicular to both axes) passing through the origin which, together with the x axis and y axis will constitute our three-dimensional coordinate system.

Accordingly we can say that two perpendicular lines can represent a three-dimensional coordinate system.

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