document.write( "Question 95805: How do you write an equation for the relation given in the chart?
\n" ); document.write( "x -2 0 2 4
\n" ); document.write( "y 10 2 -6 -14 \n" ); document.write( "

Algebra.Com's Answer #69799 by edjones(8007) $\"\"$ $\"About$

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(-2,10)(0,2)(2,-6)(4,-14)
\n" ); document.write( "plot the above points on a graph and you will see you have a straight line.
\n" ); document.write( "we need 2 points so we will take the 1st (-2,10) and the 4th set (4,-14)arbitrarily.
\n" ); document.write( " $\"slope+%28m%29=%28y-y%5B1%5D%29%2F%28x-x%5B1%5D%29=%2810-%28-14%29%29%2F%28-2-4%29=24%2F-6=-4\"$
\n" ); document.write( "m=-4
\n" ); document.write( "Next we get an equation:
\n" ); document.write( "Point slope form: y-y[1]=m(x-x[1])
\n" ); document.write( "y-(-14)=-4(x-4)
\n" ); document.write( "y+14=-4x+16
\n" ); document.write( "y=-4x+2 (slope intercept form)
\n" ); document.write( "General form of the same equation: 4x+y-2=0
\n" ); document.write( "EdJones
\n" ); document.write( " $\"graph%28500%2C500%2C-10%2C10%2C-10%2C10%2C-4x%2B2%29\"$ \n" ); document.write( "

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