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Graphing Linear Equations Including Horizontal and Vertical Lines. Presley Lozano, Chloe Husain, and Savannah Nguyen. Vocabulary. Domain: the set of values of the independent variables Range: the set of y values of a function or relation
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Graphing Linear Equations Including Horizontal and Vertical Lines Presley Lozano, Chloe Husain, and Savannah Nguyen
Vocabulary • Domain: the set of values of the independent variables • Range: the set of y values of a function or relation • Constant function: the function is the form of y=x (f) or the constant • The x and y plane is formed by the x-axis and the y-axis • Horizontal line: the line is perfectly flat and level there is no slope • Vertical line: like that is straight up and down
How to Find the X an Y Intercepts • X and Y Intercepts: The x-intercept is where the graph crosses the x-axis, and the y-intercept is where the graph crosses the y-axis • The x-intercept: is a point is a point on the graph where the y is zero and the y-intercept is the pint on the graph where the x is zero • Ways to solving: Plug in the zero for the one you aren't solving for, in other words when you're solving for x you plug in zero for y. Vise versa when you are solving for y you plug in zero for x.
How to Graph Horizontal Lines • A line that is parallel to the x-axis is going to be your horizontal line. • When graphing horizontal line, you will be given the y-value such as something like y=4. • This means the coordinating points that have 4 as the y will be on the horizontal line. • Example: (5,4) (10,4) and(-24,4) will all be on this horizontal line.
How to Graph Vertical Lines • Next is how to graph a vertical line, which is a line that is parallel to the Y axis. • You will be giving a value for x when finding a vertical line. • You might be given at x=0 which means only point with the x value of zero will be on this line. • Example: (0,3) (0,6) and (0,10) will all be on this vertical line.