document.write( "Question 446389: Translate to an equation:\r
\n" ); document.write( "\n" ); document.write( "p $40 pants and s $20 shirts total $160\r
\n" ); document.write( "\n" ); document.write( "Graph the equation and use the graph to determine three different combinations of pants and shirts that total $160. \n" ); document.write( "

Algebra.Com's Answer #308966 by jorel1380(3719) $\"\"$ $\"About$

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Solved by pluggable solver: DESCRIBE a linear EQUATION: slope, intercepts, etc

Equation $\"40+x+%2B+20+y+=+160\"$ describes a sloping line. For any
\n" ); document.write( " equation ax+by+c = 0, slope is $\"-a%2Fb+=+-40%2F20\"$ .

X intercept is found by setting y to 0: ax+by=c becomes ax=c. that means that x = c/a. 160/40 = 4.
Y intercept is found by setting x to 0: the equation becomes by=c, and therefore y = c/b. Y intercept is 160/20 = 8.
Slope is -40/20 = -2.
Equation in slope-intercept form: y=-2*x+8.

$\"graph%28+500%2C+500%2C+4-8%2C+4%2B8%2C+8-8%2C+8%2B8%2C+-2%2Ax%2B8+%29+\"$ \n" ); document.write( "

\n" ); document.write( "\n" ); document.write( "Points (4,0)(3,2)(2,4).. \n" ); document.write( "

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