document.write( "Question 394746: know nothing about this linear funtions stuff at home sick but feeling better now and no math book. Here is one- y=-1/2x+3 it says to create a table with 5 coordinate points and sketch the graph that it represents \n" ); document.write( "
Algebra.Com's Answer #280203 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
Here is one- y=-1/2x+3 it says to create a table with 5 coordinate points and sketch the graph that it
\n" ); document.write( ":
\n" ); document.write( "Using the given equation choose 5 values for x and find y, plot these x,y points on a graph
\n" ); document.write( ":
\n" ); document.write( "We choose x value of -4, -2, 0, 2, 4:
\n" ); document.write( "I chose even values because the equation has a fraction, this will give us integer values for y
\n" ); document.write( ":
\n" ); document.write( "y= \"-1%2F2\"x + 3
\n" ); document.write( "x = -4
\n" ); document.write( "y = \"-1%2F2%29\"(-4) + 3
\n" ); document.write( "y = +2 + 3
\n" ); document.write( "y = 5
\n" ); document.write( "the first coordinate point: -4, 5
\n" ); document.write( ":
\n" ); document.write( "x = -2
\n" ); document.write( "y = \"-1%2F2\"(-2) + 3
\n" ); document.write( "y = 1 + 3
\n" ); document.write( "y = 4
\n" ); document.write( "the 2nd coordinate point: -2, 4
\n" ); document.write( ":
\n" ); document.write( "x = 0
\n" ); document.write( "y = \"-1%2F2\"(0) + 3
\n" ); document.write( "y = 3
\n" ); document.write( "the 3rd coordinate point: 0, 3
\n" ); document.write( ":
\n" ); document.write( "x = 2
\n" ); document.write( "y = \"-1%2F2%29\"(2) + 3
\n" ); document.write( "y = -1 + 3
\n" ); document.write( "y = 2
\n" ); document.write( "the 4th coordinate point: 2, 2
\n" ); document.write( ":
\n" ); document.write( "x = 4
\n" ); document.write( "y = \"-1%2F2%29\"(4) + 3
\n" ); document.write( "y = -2 + 3
\n" ); document.write( "y = 1
\n" ); document.write( "the 5th coordinate point: 4, 1
\n" ); document.write( ":
\n" ); document.write( "To put this in a table
\n" ); document.write( " x | y
\n" ); document.write( "-------
\n" ); document.write( "-4 | 5
\n" ); document.write( "-2 | 4
\n" ); document.write( " 0 | 3
\n" ); document.write( "+2 | 2
\n" ); document.write( "+4 | 1
\n" ); document.write( ":
\n" ); document.write( "Plot these points on a standard graph, you should be able to join these points with a straight line.
\n" ); document.write( "it should look like this:
\n" ); document.write( "\"+graph%28+300%2C+300%2C+-10%2C+10%2C+-10%2C+10%2C+-.5x%2B3%29+\"
\n" ); document.write( ":
\n" ); document.write( "A note on linear equations, there's a constant change in y for each change in x
\n" ); document.write( "You can see on the table, a 2 unit change in x, gives a 1 unit change in y
\n" ); document.write( "This is determined by the slope, which in this equation is -1/2. If the slope
\n" ); document.write( "is positive, the line goes upward, if it is negative like we have here is goes downward
\n" ); document.write( ":
\n" ); document.write( "Anyway, glad you are feeling better and that this will help you, Carl
\n" ); document.write( "
\n" );