1

The slope of the table values can be calculated by taking the first column as x points and the second column as a y point. For example, row 1 first box is the x point while row 1 second box is the y point of the line.

2

In mathematics, the undefined slope is the slope of the vertical line. The x-coordinates in the undefined slope remain unchanged, no matter what the y coordinates are.

3

The zero slope is that slope in which the y-coordinates or vertical points remain the same. So, the zero slope is a slope of x-coordinates or horizontal lines.

4

As the slope of the line is equal to the tan(θ).

Slope = Δy/Δx = tan(θ)

So, if the slope is 1 it means the angle of the slope is 45^{0}. Hence, if the slope is 1 then it rises as fast as it goes forward.