document.write( "Question 284138: How do i write an equation with the points (0,4),(3,3) \n" ); document.write( "

Algebra.Com's Answer #206237 by oberobic(2304) $\"\"$ $\"About$

You can put this solution on YOUR website!
When you know two points, use the slope-intercept form: y = mx+b
\n" ); document.write( "m = rise / run = change in y / change in x
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\n" ); document.write( "m = (4-3) / (0-3) = 1/-3 = -(1/3)
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\n" ); document.write( "y = -1/3x+b
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\n" ); document.write( "Now substitute one of the point's values to find b.
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\n" ); document.write( "4 = -(1/3)(0) + b
\n" ); document.write( "b = 4
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\n" ); document.write( "Check using the second point.
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\n" ); document.write( "3 = -1/3(3) + b = -1 + b
\n" ); document.write( "b = 4
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\n" ); document.write( "Therefore,
\n" ); document.write( "y = -1/3x + 4
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\n" ); document.write( "Graph it for another check.
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