document.write( "Question 1127672: 9x + y = 8 how to find the x intercepts \n" ); document.write( "
Algebra.Com's Answer #744141 by greenestamps(13203)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "It is a basic concept that you want to understand, as it will make a lot of things easier to understand. \n" ); document.write( "(1) An x-intercept is a place where a graph crosses the x-axis. \n" ); document.write( "(2) Everywhere on the x-axis, the y value is 0. \n" ); document.write( "(3) Therefore, to find the x-intercept(s) of a graph, set y=0 and solve the resulting equation. \n" ); document.write( "In your example... \n" ); document.write( "9x+y = 8 \n" ); document.write( "9x+0 = 8 \n" ); document.write( "9x = 8 \n" ); document.write( "x = 8/9 \n" ); document.write( "Note that the answer to the question \"what is the x-intercept\" can be either the x value by itself, \"8/9\", or the ordered pair with y=0, \"(8/9,0)\". \n" ); document.write( "It's not part of your question, but note that finding y-intercepts is similar. \n" ); document.write( "(1) A y-intercept is a place where a graph crosses the y-axis. \n" ); document.write( "(2) Everywhere on the y-axis, the x value is 0. \n" ); document.write( "(3) Therefore, to find the y-intercept(s) of a graph, set x=0 and solve the resulting equation. \r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |