VG1
ordbok
Dictionary: Variable
A variable is a symbol, usually x or y, that represents an unknown number.
x, y, z, a, b, c ...
A variable is a placeholder for a number we do not yet know. In equations we find the variable by solving the equation.
Example: In f(x) = 3x + 2, x is the variable.
Algebra is the offer made by the devil to the mathematician.
— Michael Atiyah (1929–2019)
Read also
Dictionary: Parabola
A parabola is the curve you get when you graph a quadratic function — the characteristic U…
Dictionary: Diameter and radius
Radius is the distance from the centre to the edge of a circle. Diameter is the distance a…
Dictionary: Function
A function is a rule that connects each number x to exactly one number y.…