document.write( "Question 637011: x + 3y = 15 \r
\n" ); document.write( "\n" ); document.write( "When you graph this equation, the line will pass through all quadrants EXCEPT:\r
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\n" ); document.write( "\n" ); document.write( " 3rd quadrant
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Algebra.Com's Answer #401334 by reviewermath(1029) $\"\"$ $\"About$

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Answer: 3rd quadrant
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Solved by pluggable solver: DESCRIBE a linear EQUATION: slope, intercepts, etc

Equation $\"1+x+%2B+3+y+=+15\"$ describes a sloping line. For any
\n" ); document.write( " equation ax+by+c = 0, slope is $\"-a%2Fb+=+-1%2F3\"$ .

X intercept is found by setting y to 0: ax+by=c becomes ax=c. that means that x = c/a. 15/1 = 15.
Y intercept is found by setting x to 0: the equation becomes by=c, and therefore y = c/b. Y intercept is 15/3 = 5.
Slope is -1/3 = -0.333333333333333.
Equation in slope-intercept form: y=-0.333333333333333*x+5.

$\"graph%28+500%2C+500%2C+15-8%2C+15%2B8%2C+5-8%2C+5%2B8%2C+-0.333333333333333%2Ax%2B5+%29+\"$ \n" ); document.write( "

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