The point P (5, 3) was reflected in the origin to get the image P'.
Name the figure PMP'N.

Answer

To solve the problem of reflecting the point P (5, 3) in the origin and naming the figure PMP'N, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Coordinates of Point P**:
The given point P has coordinates (5, 3).

2. **Reflect Point P in the Origin**:
To find the image P' of point P after reflection in the origin, we change the signs of both the x and y coordinates.
Therefore, the coordinates of P' will be:
\[ P' = (-5, -3) \]

3. **Plot Points P and P' on a Cartesian Plane**:
- Plot point P at (5, 3) on the Cartesian plane.
- Plot point P' at (-5, -3).

4. **Draw Perpendiculars from Points P and P' to the X-Axis**:
- From point P (5, 3), draw a vertical line down to the x-axis. Let the intersection point on the x-axis be M.
- From point P' (-5, -3), draw a vertical line up to the x-axis. Let the intersection point on the x-axis be N.

5. **Identify the Coordinates of Points M and N**:
- The coordinates of point M will be (5, 0).
- The coordinates of point N will be (-5, 0).

6. **Connect Points to Form the Figure PMP'N**:
- Draw a line segment from point P to point M.
- Draw a line segment from point P' to point N.
- The figure formed by these points is named PMP'N.

### Final Naming of the Figure:
The figure PMP'N consists of the points P, M, P', and N, where M and N are the foot of the perpendiculars dropped from P and P' to the x-axis, respectively.