No reason, it's just a useful habit. We could call it banana if we wanted.
The graph of [ y = 7 ] is a straight horizontal line, passing through the point [ y = 7 ]on the y-axis. The slope of a horizontal line is zero.
6
The line y = 6 is horizontal and has a slope of zero, as does any line that is parallel to it.
Zero. Y=4 is a horizontal line.
vertical
No, the "Y" axis is the vertical line, the horizontal line is the "X" axis.
For a horizontal line, it is y= a value
y - 4 is not an equation so does not form a line. y = 4 is a horizontal line as every co-ordinate has the y value of 4.
The horizontal line is called the horizontal axis
The equation ( y - 2 = 0 ) represents a horizontal line at ( y = 2 ). The slope of a horizontal line is 0. A line that is perpendicular to a horizontal line has an undefined slope, as it would be a vertical line. Therefore, the slope of a line perpendicular to ( y - 2 = 0 ) is undefined.
Y = 4 is a horizontal line with zero slope. dy/dx = 0
A horizontal line has a slope of zero. The equation of a horizontal line is y = a.
depends on whether y=6 or x=6 if y=6 then its a horizontal line if x=6 then its a vertical line
The graph of [ y = 7 ] is a straight horizontal line, passing through the point [ y = 7 ]on the y-axis. The slope of a horizontal line is zero.
A vertical line has the same x-value. A horizontal line has the same y-value. The equation, y=3 would graph as a horizontal line crossing the y-axis at 3.
The graph is a horizontal line at y=3
If the y coordinate does not change, it is a horizontal line.