document.write( "Question 366550: A 3 min cab ride costs $3.00. A 6 min cab ride costs $4.80. Find a linear equation that models cost c as a function of distance d.\r
\n" ); document.write( "\n" ); document.write( "A. c=0.60d+1.20\r
\n" ); document.write( "\n" ); document.write( "B. c=1.00d+1.80\r
\n" ); document.write( "\n" ); document.write( "C. c=0.80d+1.20\r
\n" ); document.write( "\n" ); document.write( "D. d=0.60c+1.80 \n" ); document.write( "

Algebra.Com's Answer #261210 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!


\n" );
document.write( "Hi, 
\n" );
document.write( "Using the point-slope model for a linear expression c = mt + b
\n" );
document.write( "(3,3.00)(6,4.80)
\n" );
document.write( "m = 1.80/3 = .60
\n" );
document.write( "c = .60t + b (using (3,3.00) to solve for b
\n" );
document.write( "3.00 = .60*3  + b
\n" );
document.write( "1.20 = b
\n" );
document.write( "c = .60t + 1.20
\n" );
document.write( "answer A would be the correct choice \n" );
document.write( "

\n" );