Question 354200
Hi,
*Note: By making a table: you find points on the particular line. Drawing a line thru the points found, allows us to "graph the line"
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Ex:1
*[tex \LARGE \ \ \ \ \ x \ \ \ \ \ y = 4]
*[tex \LARGE \ \ \ \ \ 0 \ \ \ \ \ y = 4]
*[tex \LARGE \ \ \ \ \ 1 \ \ \ \ \ y = 4]
In this case, y is always 4. This equation describes a line that is parallel to the x-axis. (0,4) and (1,4) being two points on the line.
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Ex 2
*[tex \LARGE \ \ \ \ \ x \ \ \ \ \ y = 3x]
*[tex \LARGE \ \ \ \ \ 0 \ \ \ \ \ y = 0]
*[tex \LARGE \ \ \ \ \ 1 \ \ \ \ \ y = 3]
(0,0) and (1,3) being two points on the line.
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Ex 3
*[tex \LARGE \ \ \ \ \ x \ \ \ \ \ y = x + 4]
*[tex \LARGE \ \ \ \ \ 0 \ \ \ \ \ y = 4]
*[tex \LARGE \ \ \ \ \ 1 \ \ \ \ \ y = 5]
(0,4) and (1,5) being two points on the line.
the graph of this line would be as follows:
{{{drawing(300,300, -6, 6, -6, 6,
circle(0, 4,0.2),
circle(1, 5,0.2),

graph( 300, 300, -6, 6, -6, 6, x+4))}}}