document.write( "Question 1207854: Florida Power & Light Company supplies electricity to residential customers for a monthly customer charge of $5.69 plus 8.48 cents per kilowatt-hour for up to 1000 kilowatt-hours. \r
\n" ); document.write( "\n" ); document.write( "(a) Write a linear equation that relates the monthly charge C,in dollars, to the number x of kilowatt-hours used in a month, 0 <= x <= 1000.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "(b) Graph the equation.
\n" ); document.write( "

Algebra.Com's Answer #845987 by ikleyn(52781)\"\" \"About 
You can put this solution on YOUR website!
.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\r\n" );
document.write( "The equation is\r\n" );
document.write( "\r\n" );
document.write( "    C = 0.0848*x + 5.69 dollars, x in kilowatt-hours,  0 <= x <= 1000.    ANSWER\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "0.0848 is 8.48 cents, converted to dollars.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "The formula says that the monthly charge, C, in dollars, increases linearly from the base value of 5.69 dollars\r\n" );
document.write( "by 0.0848 dollars for each kilowatt-hour, in the range from 0 to 1000 kilowatt-hours.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "So, this formula is a literal translation of the wording description to the Math language.\r\n" );
document.write( "
\r
\n" ); document.write( "\n" ); document.write( "Thus (a)  is solved and explained.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "----------------\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Regarding  (b),  make a plot on your own.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "You may use an online free of charge plotting tool at web-site \r
\n" ); document.write( "\n" ); document.write( "www.desmos.com/calculator\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Print the equation there in the specialized window and get your plot instantly\r
\n" ); document.write( "\n" ); document.write( "in the next second  (faster than you blink your eye).\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );