Izzy and Amie made the zero with a line through it!
How about "is always zero"?
A straight line passes through the x-axis one time, if its slope is non-zero, or not at all, if its slope is zero.
The slope is zero.
A line with slope of zero is horizontal. A line with no slope is vertical because slope is undefined on a vertical line.
Izzy and Amie made the zero with a line through it!
I and A!
How about "is always zero"?
sometimes zero
The letter 'O' with a slash through it is the number zero.
A straight line passes through the x-axis one time, if its slope is non-zero, or not at all, if its slope is zero.
The line going through an "o" helps to clarify the letter o, from the number zero.
The symbol is a zero with a diagonal line through it.
Greenwich, England
zero
The y-axis on a graph is the line that runs up and down through zero. The x-axis is the line that runs horizontally through zero. Both lines help people make their measurements in math.
This is the Zero line of longitude that passes through Greenwich Observatory in London, England.