Linnear Functions and Equations

13.) 2x+y=6 so.. y= 6-2x

14.) 5x+y=7 so.. y=7-5x

15.) 3x+2y=8
-3x -3x
_____________
2y = -3x+8
___ _____
2 2

y= -3
____
2 x + 4

16.) 2x+5y= 10
-2x -2x
=_____________
5y= -2x+10
__ _____
5 5

y= - 2
___
5 x +2


DEFINED WORDS-
Plot- an ordered pair as a point in a "number plane."
Horizontal Axis- horizontal number line.
Origin-the point of intersection at the x and y axis on a coordinate or cortesian plane.
Vertical Axis- second number line.
X. Axis- the horizontal axis of a graph.
Y. Axis- the vertical axis of a graph.
Graph of the Ordered Pair- (2, 3)
Coordinates- Shown as pair of letters and or numbers. (2, 4)
X. Coordinate- The horizontal axis of a graph.
Y. Coordinate- The vertical axis of a graph.
Coordinate axes- x and y axes are also called coordinate axes
Coordinate plane- a plane containing 2 perpendicular axes (x and y)
Quadrants- a quarter of a circle or its circumference.
Graph of an Equation- 2 variables that consist of 2 points that are the graphs of the solutions of the equation.
Linear Equation- graph is a line.