document.write( "Question 1148228: The average profit/loss of a company (in thousands of dollars) was documented for 30 months. The 4th month showed a loss of $3000, however the 20th month showed a profit of $5000. Assuming the profit/loss is linear, write the equation of the line, in slope-intercept form, that represents the profit/loss for each month x. Use this result to predict the profit/loss after 60 months.
\n" ); document.write( "Hint: Use the ordered pairs (4,-3) (20,5). \n" ); document.write( "

Algebra.Com's Answer #769585 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Use the general point-slope formula
\n" ); document.write( " $\"+%28+P+-+%28-3%29+%29+%2F+%28+x+-+4+%29+=+%28+5+-%28-3%29+%29+%2F+%28+20+-+4+%29+\"$
\n" ); document.write( " $\"+%28+P+-+%28-3%29+%29+%2F+%28+x+-+4+%29+=+8+%2F+16+\"$
\n" ); document.write( " $\"+%28+P+-+%28-3%29+%29+%2F+%28+x+-+4+%29+=+1%2F2+\"$
\n" ); document.write( " $\"+P+%2B+3+=+%281%2F2%29%2A%28+x+-+4+%29+\"$
\n" ); document.write( " $\"+P+=+%281%2F2%29%2Ax+-+2+-+3+\"$
\n" ); document.write( " $\"+P+=+%281%2F2%29%2Ax+-+5+\"$
\n" ); document.write( "After 60 months, the ordered pair is ( 60, P )
\n" ); document.write( " $\"+P+=+%281%2F2%29%2A60+-+5+\"$
\n" ); document.write( " $\"+P+=+30+-+5+\"$
\n" ); document.write( " $\"+P+=+25+\"$
\n" ); document.write( "25 thousand is the profit after 60 months
\n" ); document.write( "Here's the plot:
\n" ); document.write( " $\"+graph%28+400%2C+400%2C+-50%2C+50%2C+-10%2C+10%2C+%281%2F2%29%2Ax+-+5+%29+\"$
\n" ); document.write( " \n" ); document.write( "

\n" );