document.write( "Question 22422: The points (0,3) and (3,5) lie on the graph of a linear function f. Find f(x) \n" ); document.write( "

Algebra.Com's Answer #10950 by stanbon(75887) $\"\"$ $\"About$

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Determine the slope:
\n" ); document.write( "slope = m = (5-3)/(3-0) = 2/3
\n" ); document.write( "The form of the equation is y=mx+b.
\n" ); document.write( "You need to find \"b\"
\n" ); document.write( "The point (0,3) is on the line so it provides an x-value and a y-value to
\n" ); document.write( "plug into the form:
\n" ); document.write( "So substitute m=2/3, x=0, y=3 into the form to get the following:
\n" ); document.write( " 3=(2/3)(0)+b
\n" ); document.write( " b= 3
\n" ); document.write( "The equation you want is y= (2/3)x + 3
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan h
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