document.write( "Question 615445: Zeros or x-intercept of 2x+1 \n" ); document.write( "
Algebra.Com's Answer #387163 by asuar010(338)\"\" \"About 
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Solved by pluggable solver: DESCRIBE a linear EQUATION: slope, intercepts, etc
Equation \"-2+x+%2B+1+y+=+1\" describes a sloping line. For any
\n" ); document.write( " equation ax+by+c = 0, slope is \"-a%2Fb+=+--2%2F1\".
  • X intercept is found by setting y to 0: ax+by=c becomes ax=c. that means that x = c/a. 1/-2 = -0.5.
  • Y intercept is found by setting x to 0: the equation becomes by=c, and therefore y = c/b. Y intercept is 1/1 = 1.
  • Slope is --2/1 = 2.
  • Equation in slope-intercept form: y=2*x+1.
\"graph%28+500%2C+500%2C+-0.5-8%2C+-0.5%2B8%2C+1-8%2C+1%2B8%2C+2%2Ax%2B1+%29+\"\n" ); document.write( "
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