Question

For the graph:

The lines intersect at exactly one point, (-1, 3).
The horizontal line is represented by the equation, y = 3.
The vertical line is represented by the equation, x = -1.
The vertical line has an undefined slope and does not have a y-intercept.
The horizontal line has a y-intercept of (0, 3) and a slope of zero.

Answer 1

The horizontal line is the red one, running parallel to the X axis and equation is y=3.

The vertical line is the blue one, parallel to the Y axis, the equation being x=-1