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When you don't have a graphing calculator, the best way of determining the graph is to create a table with two columns. Label one column x, the other y.\r
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\n" ); document.write( "\n" ); document.write( "Then assign a value to x. Write it down under the x column.
\n" ); document.write( "Solve for y. Write the result under the y column.
\n" ); document.write( "Your x and y values would be your first point in the cartesian plane.
\n" ); document.write( "You only need to do this with two x values to determine a straight line.
\n" ); document.write( "However, plotting more points helps to ensure us that we are on the right track.\r
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\n" ); document.write( "\n" ); document.write( "When x=1, y=-(1)+1=0 ... our first point is (1,0)
\n" ); document.write( "When x=2, y=-(2)+1=-1 ... our second point is (2,-1)
\n" ); document.write( "When x=3, y=-(3)+1=-2 ... our third point is (3,-2)
\n" ); document.write( "Let's try a couple of negative x values:
\n" ); document.write( "When x=-1, y=-(-1)+1=1+1=2 ... our fourth point is (-1,2)
\n" ); document.write( "When x=-2, y=-(-2)+1=2+1=3 ... our fifth point is (-2,3)\r
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\n" ); document.write( "\n" ); document.write( "If we plot all point in the cartesian plane, our graph would look like the one below.
\n" ); document.write( "Follow the line and the (x,y) values... they are all represented in this graph.\r
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