The slope of a vertical line is infinity and the slope of a horizontal line is 0.
If a vertical line passes through the point (7, -8) its equation is x = 7. The equation of a horizontal line passing through the point (7, -8) is y = -8.
The equation of a vertical line through the point (7, -8) is x = 7 and the equation of a horizontal line through the same point is y = -8
With a point (7, -8), the equation of a vertical line passing through it would be x=7. The reason for this is because regardless of what the y-value is, the x-value will always be 7 since a vertical line goes directly up without curving or changing direction. As a result, the slope would be infinite since the line forever continues going up.
For a horizontal line passing through the point, the equation would be y=-8 because regardless of the x-value, the line will always pass through -8 on the y-axis. All horizontal lines have slopes of 0, because slope is rise over run, and horizontal lines never rise.
Given the point (7,-8) find the equation and slopes of the vertical and horizontal lines that pass through the that point
Given (7,-8) find the equation and slopes of the vertical and horizontal lines that pass through the that point
Vertical line: all y values share the same x value so:
x = 7
The slope is undefined for vertical lines.
Horizontal line: all x values share the same y value so:
y = -8
The slope is 0 for all horizontal lines. (No rise, no run!)