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List of mathematical symbols


x = y means x and y represent the same math object (Both symbols have the same value). 2 = 2 1 + 1 = 2. ≠. \ne. inequality. is not equal to; does not equal.

Algebra - Definitions - Math is Fun


That equation says: what is on the left (x + 2) is equal to what is on the right (6) ... It is usually a letter like x or y. A number on its own is called a Constant. A Coefficient is a number used to multiply a variable (4x means 4 times x, so 4 is a  ...

The Difference of x and y... - Math Forum - Ask Dr. Math


mean? What does "the difference of x and y" mean? I pretty sure it means x - y. ... ask yourself, "Is the difference between 7 and 49 equal to 42?

What is a Function - Math is Fun


f(x). We say "f of x equals x squared". what goes into the function is put inside parentheses () after the name of the ... And we usually see what a function does with the input: f(x) ... means that every element in X is related to some element in Y.

Solving the Equation x^y = y^x - Math Forum - Ask Dr. Math


Well, this happens when X = Y, but does it happen elsewhere? ... Well, if X and Y are different values and f(X) = f(Y), then that means that there ...

Direct Variation - Free Math Help


In simpler terms, that means if A is always twice as much as B, then they directly vary. ... To be more "mathematical" about it, if y varies directly as x, then the graph of all points that describe this ... What does this mean? ... The equation y = kx is a special case of linear equation (y=mx+b) where the y-intercept equals ...

Exponential Functions - Free Math Help


An exponential function is a mathematical expression in which a variable ... That equation is read as "y equals 2 to the x power." ... What does it mean? There are  ...

Less than, Equal to, Greater Than Symbols - Interactive Mathematics ...


... 1 + 1 = 2. So, being equal, does not necessarily mean being the same. ... For example, (x + y)² = x² + 2xy + y² is a statement that is not supposed to be solved.

Maths : What is a Function : y=f(x) - YouTube


Jul 14, 2011 ... In this video I try to explain what a function in maths is. I once asked myself, why keep writing y=f(x) and not just y! ... It's a placeholder - it doesn't do anything but it does represent something. ... So, f can represent very many different things. f=2x +2y means an operation where you add each x & y va...

Horizontal line definition. (Coordinate Geometry) - Math Open ...


Definition: A straight line on the coordinate plane where all points on the line ... A or B and note the line is horizontal when they both have the same y-coordinate. ... A horizontal line is one the goes left-to-right, parallel to the x-axis of the coordinate plane. ... As you move to the right along the line, it does not rise or fall ...

Helpful Resources

Mathematical symbols list (+,-,x,/,=,<,>,...) - RapidTables.com


List of all math symbols and meaning - equality, inequality, parentheses, plus, minus, times, division, power, ... inequality, greater than or equal to, 5 ≥ 4 ... |x-y|, distance, distance between points x and y, | x-y | = 5 ..... there does not exists.

x-Intercepts and y-Intercepts


Definition ... ( i.e. where the y value equals 0 ) x-intercept = ( x, 0 ) The y-intercept of a line is the point at ... Find the x and y intercepts of the equation 3x + 4y = 12.

What does y= f(x) actually mean? - Math Central


Question from John, a student: I don't understand how to pick coordinates for y=f( x). I took a look at your answer to a previous question here:.

X equals Y - English Language & Usage Stack Exchange


Aug 16, 2013 ... What's the subtle difference between X equals Y and X is equal to Y? ... They mean exactly the same thing in mathematics. I prefer X equals ... "X is equal to Y" does have a bit more emphasis if you're affirming the fact, though.

x- and y-Intercepts - Purplemath


Explains how to find and recognize x- and y-intercepts, and some of the ... The x- intercepts are where the graph crosses the x-axis, and the y-intercepts are ... ... and ask you to find the "solutions", you'll know that they mean "find the x- intercepts", ... in their use of the mathematical terms, and they never g...