0
All points in a plane do have a y-coordinate. Its value may be 'zero' ... if the point happens to lie on the x-axis ... but 'zero' is a perfectly good coordinate.
If you want all points whose y-coordinate is not zero, then those are |y| > 0. (Absolute value of 'y' is greater than zero.)
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What is a sphere in geometry?
A sphere is any round object having the surface equally distant from the center at all points in all directions.
How do I find the y-intercept if the line passes through negative 2 and 3?
You can't. There are an infinite number of lines that pass through the point (-2, 3).They all have different y-intercepts and different slopes.In order to narrow it down to a single line, you have to give more information.One more point would do it.=======================================================Here's the minimum information needed to define a unique line:-- you name 2 points; I find slope, intercept, and all other points.-- you name one point and one intercept ... 'x' or 'y'; I find slope and all other points.-- you name x-intercept and y-intercept; I find slope and all other points.-- you name one point and the slope; I find intercept and all other points.-- you name one intercept and the slope; I find all other points.
What is a cloesed plane figure having all points an equal distance from the center?
It is a circle or a sphere
Is it true that a line on a map drawn through all points having the same temperature is called an isobar?
A line through many points with the same air temperatureis an "isotherm".The "isobar" is a line through many points with the same air pressure.
Is an adherent point an accumulation point?
No, not all adherent points are accumulation points. But all accumulation points are adherent points.
