Which equation represents a l in e which is perpendicular to the x-axis?
y = x
y = x - 3
x = 5
y = -1
x = 5
The equation that represents a line that is perpendicular to the x-axis is "y = constant." In this case, the equation is y = -1.
To find an equation of a line that is perpendicular to the x-axis, we need to consider that the x-axis is a horizontal line. A horizontal line has a constant y-value, meaning that the equation has the form y = c, where "c" is a constant.
Out of the given equations, the one that represents a line perpendicular to the x-axis is:
y = -1
In this equation, y is always equal to -1, regardless of the value of x. Thus, it represents a horizontal line that is perpendicular to the x-axis.