document.write( "Question 470940: Find the x and y intercepts and graph the equation plotting the intercepts. -3x-4y=18. \n" ); document.write( "
Algebra.Com's Answer #323012 by jorel1380(3719)\"\" \"About 
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Solved by pluggable solver: DESCRIBE a linear EQUATION: slope, intercepts, etc
Equation \"-3+x+%2B+-4+y+=+18\" describes a sloping line. For any
\n" ); document.write( " equation ax+by+c = 0, slope is \"-a%2Fb+=+--3%2F-4\".
  • X intercept is found by setting y to 0: ax+by=c becomes ax=c. that means that x = c/a. 18/-3 = -6.
  • Y intercept is found by setting x to 0: the equation becomes by=c, and therefore y = c/b. Y intercept is 18/-4 = -4.5.
  • Slope is --3/-4 = -0.75.
  • Equation in slope-intercept form: y=-0.75*x+-4.5.
\"graph%28+500%2C+500%2C+-6-8%2C+-6%2B8%2C+-4.5-8%2C+-4.5%2B8%2C+-0.75%2Ax%2B-4.5+%29+\"\n" ); document.write( "
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