document.write( "Question 447507: find the slope and y-intercept of the line in the given equation y = 4/9x - 20 \n" ); document.write( "
Algebra.Com's Answer #308086 by jorel1380(3719)\"\" \"About 
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Solved by pluggable solver: DESCRIBE a linear EQUATION: slope, intercepts, etc
Equation \"-0.4444+x+%2B+1+y+=+-20\" describes a sloping line. For any
\n" ); document.write( " equation ax+by+c = 0, slope is \"-a%2Fb+=+--0.4444%2F1\".
  • X intercept is found by setting y to 0: ax+by=c becomes ax=c. that means that x = c/a. -20/-0.4444 = 45.004500450045.
  • Y intercept is found by setting x to 0: the equation becomes by=c, and therefore y = c/b. Y intercept is -20/1 = -20.
  • Slope is --0.4444/1 = 0.4444.
  • Equation in slope-intercept form: y=0.4444*x+-20.
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