LinearEquation , is an equation that may be put in the form {\displaystyle a_{1}x_{1}+\ldots +a_{n}x_{n}+b=0, } where x_{1}, \ldots, x_{n} are the variables, and {\displaystyle b, a_{1}, \ldots, a_{n}} are the coefficients, which are often real numbers., LinearFunction , has the form of f(x) = ax + b and its graph is a straight line., TwoVariable , An equation is said to be linear equation in____if it is written in the form of ax + by + c=0, where a, b & c are real numbers and the coefficients of x and y, i.e a and b respectively, are not equal to zero., Relation, The _______ shows the relationship between INPUT and OUTPUT., Function, A _________ is a relation which derives one OUTPUT for each given INPUT., Coordinate, a _________ is a method for identifying the location of a point on the earth., Graphing, a pictorial representation or a diagram that represents data or values in an organized manner, Line, a straight one-dimensional figure that does not have a thickness, and it extends endlessly in both directions., Point, used to tell exact location in space, Quadrant, is a region defined by the two axes (x-axis and y-axis) of the coordinate system, x axis , the principal or horizontal axis of a system of coordinates, points along which have a value of zero for all other coordinates., y axis, the secondary or vertical axis of a system of coordinates, points along which have a value of zero for all other coordinates., abscissa, (in a system of coordinates) the x -coordinate, the distance from a point to the vertical or y -axis measured parallel to the horizontal or x -axis., ordinate, (in a system of coordinates) the y -coordinate, representing the distance from a point to the horizontal or x -axis measured parallel to the vertical or y -axis., plot, is a graphical technique for representing a data set, usually as a graph showing the relationship between two or more variables., Variable, a number, amount, or situation that can change and affect something in different ways, coefficient, a numerical or constant quantity placed before and multiplying the variable in an algebraic expression, illustrate, to show, depict, demonstrate, graphically display, Input, what goes into the function, Output, what comes out of the function.

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