document.write( "Question 697492: How do you find the y-intercept when you are given a line with a point (2,4) and a gradient of 1/2? \n" ); document.write( "
Algebra.Com's Answer #430069 by nerdybill(7384)\"\" \"About 
You can put this solution on YOUR website!
How do you find the y-intercept when you are given a line with a point (2,4) and a gradient of 1/2?
\n" ); document.write( "\"Gradient\" is the same as the slope
\n" ); document.write( "Plug slope (1/2) and the point (2,4) into the \"point-slope\" form:
\n" ); document.write( "y - y1 = m(x - x1)
\n" ); document.write( "y - 4 = (1/2)(x - 2)
\n" ); document.write( "y - 4 = (1/2)x - 1
\n" ); document.write( "y = (1/2)x - 1 + 4
\n" ); document.write( "y = (1/2)x + 3
\n" ); document.write( ".
\n" ); document.write( "to find the y-intercept, set x to zero:
\n" ); document.write( "y = (1/2)x + 3
\n" ); document.write( "y = (1/2)0 + 3
\n" ); document.write( "y = 3
\n" ); document.write( ".
\n" ); document.write( "y-intercept is at (0,3)\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
\n" );