Unit5
Who discovered the Cartesian plane？
René Descartes
What is equation?
What is Algebra？
Algebra is the branch of mathematics that studies numbers, quantities, relationships, structures and algebraic equations
What is percent？
Percentages express how many per cent one number is of another number, and are also called percentages or percentages. Percentages are not usually written as fractions, but are represented by the symbol "%". [1]
What is the composition of the Cartesian plane？
A right-angled coordinate system in two dimensions consists of two mutually perpendicular number lines that intersect at the origin
What does the equation consist of?
An equation is written as two expressions, connected by an equals sign ("=").
What is polynomial ？
A polynomial is an expression obtained from variables, coefficients, and the operations of addition, subtraction, multiplication, and powers (non-negative integer powers) between them.
What is proportion？
It is a mathematical term that denotes an equation in which two or more ratios are equal. In a proportion, the product of two external terms is equal to the product of two internal terms is called the fundamental property of proportions.
What is quadrants？
The two axes of the plane's Cartesian Coordinate System divide the plane into four parts, called quadrants, which are numbered by Roman numerals
What is formal check ？
After the problem is calculated, perform the counterattack calculation again to check whether the previous results are correct.
What is Coefficient ？
Coefficient In mathematics, a constant that acts as a multiplicative factor of an object in an expression
What's root?
A square root, also called a quadratic square root, is denoted as [±√￣], where a square root belonging to a non-negative number is called an arithmetic square root, a type of square root. A positive number has two real square roots, which are opposite to each other, a negative number has no square root in the real range, and the square root of 0 is 0.
How the Cartesian Plane Works?
In the plane, the coordinates of any point are set according to the coordinates of the corresponding point on the numerical axis. In the plane, the correspondence of any point to a coordinate is set by the correspondence of the point on the antenna axis to the coordinate.
What is unknown number
An unknown number is a value to be determined in solving an equation and is also used to denote something that is not yet known. In maths, we often use the symbols x or y to mark unknown numbers
What is Simplification？
Simplification is the process of turning complex equations into simple ones
How square roots work？
Multiply itself by its own value to get the original number
Expression formulae for the Cartesian plane
y=mx+k