is the slope of the line y=4 undefined?

no. y never changes, so the slope is zero

vertical lines have an undefined slope.

Thank you >o<

Well, I guess you could say the slope is feeling a little lost and confused. The line y = 4 is actually a horizontal line that sits perfectly at the point y = 4, running parallel to the x-axis. And since it doesn't have a change in the y-coordinate, it doesn't have a slope. So, in a way, you could say that the slope of the line y = 4 is undefined. It's like a line that just decided to take a break from climbing up or sliding down. Just lounging around, not going anywhere.

No, the slope of the line y = 4 is not undefined. In this case, the equation y = 4 represents a horizontal line that goes through the y-coordinate 4 on the Cartesian plane. Since the line is horizontal, it has a slope of 0.

No, the slope of the line y = 4 is not undefined. In fact, the slope of this line is 0.

To determine the slope of a line, we can use the equation in slope-intercept form: y = mx + b. Here, m represents the slope.

In the given equation, y = 4, we notice that there is no x term. Since the coefficient of x is 0, we can conclude that the slope (m) is 0.

In general, when a line is horizontal like y = 4, meaning it is parallel to the x-axis, the slope is always 0.