Things whose values do not change.
A straight horizontal line is a line that goes sideways, often represented by the equation y=a where a is any real number.
The number 5000 can be represented by the numeral V with a horizontal bar placed above it or by the numeral [V]
The number 1000000 can be represented in Roman numerals by M with a horizontal bar placed above it or by [M]
A complex number can be thought of as a vector with two components, called the "real part" (usually represented on the horizontal axis), and the "imaginary part" (usually represented on the vertical axis). You can also express the complex number in polar form, that is, with a a length and an angle.
The number 8000 can be represented by the Roman numeral VIII with a horizontal bar placed above it or by the Roman numeral [VIII]
A straight horizontal line is a line that goes sideways, often represented by the equation y=a where a is any real number.
The number 5000 can be represented by the numeral V with a horizontal bar placed above it or by the numeral [V]
The Mayan symbol for number five is a horizontal bar.
The number 1000000 can be represented in Roman numerals by M with a horizontal bar placed above it or by [M]
A complex number can be thought of as a vector with two components, called the "real part" (usually represented on the horizontal axis), and the "imaginary part" (usually represented on the vertical axis). You can also express the complex number in polar form, that is, with a a length and an angle.
The number 8000 can be represented by the Roman numeral VIII with a horizontal bar placed above it or by the Roman numeral [VIII]
The Mayans used a combination of dots and lines to represent their numbers. The number thirteen is represented by three dots on top of two horizontal lines.
Item on coordinate plane are expressed (x, y),where the number for x is the horizontal coordinateand the number for y is the vertical coordinate
The number 100,000 can be represented in Roman numerals by the Roman numeral C with a horizontal bar placed above it or by the Roman numeral [C]
The number 100,000,000 can be represented by the Roman numeral [C] with a horizontal bar placed above it (which I can't write with my keyboard).
It means that they can be represented by real numbers or lengths along the number line. It means that the graph of the quadratic crosses (meets) the horizontal axis.
In the co-ordinate plane The horizontal number line is the 'x-axis'. The vertical number line is the y-axis. They intersect at the 'origin' ; coordinate (0,0) In the 3-dimensional system there is a third number line going from front to back , this is the z-axis. All three axes intersect at the origin , and have the the coordinates ( x,y,z) = (0,0,0)