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salantis [7]
3 years ago
12

Write the quadrants where the following points will lie. (a) (-20,13), (b) (-12, -8 ).​

Mathematics
1 answer:
frozen [14]3 years ago
4 0

Answer:

(-20,\, 13) would be in the second quadrant of the cartesian plane.

(-12,\, -8) would be in the third quadrant of the cartesian plane.

Step-by-step explanation:

The horizontal and vertical axes of the cartesian plane divides the plane into four quadrants. By convention, these quadrants are numbered counterclockwise starting from the quadrant on the top right:

\begin{array}{c|c}\text{Second Quadrant} & \text{First Quadrant} \\ \cline{1-2}\\[-1em] \text{Third Quadrant} & \text{Fourth Quadrant}\end{array}.

  • Top-left: first quadrant.
  • Top-right: second quadrant.
  • Bottom-left: third quadrant.
  • Bottom-right: fourth quadrant.
  • Points on either axes (where at least one of the coordinates is 0) are not in any of the four quadrants.

The x-coordinate of the first point, (-20,\, 13), is x = -20, which is negative. Thus, this point would be to the left of the vertical axis.

Since the y-coordinate of this point, y = 13, is positive, this point would be above the horizontal axis.

Thus, the point (-20,\, 13) would be in the quadrant on the top-left corner of the cartesian plane. Therefore, this point would be in the second quadrant of the plane.

The second point (-12,\, -8) would also be to the left of the vertical axis since the x-coordinate of this point, x = -12, is negative.

This point would be below the horizontal axis since the y-coordinate of this point y = -8 is negative.

Thus, the point (-12,\, -8) would be in the quadrant on the lower-left corner of the cartesian plane. This point would be thus be in the third quadrant of the plane.

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