document.write( "Question 662625: I need to setup linear equation for the following:A 7 mile cab ride cost $10.20, a 10 mile cab ride is $13.80. Find a linear equation that models a relationship bewtween the cost (c) and the distance (d). \n" ); document.write( "
Algebra.Com's Answer #412393 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
I need to setup linear equation for the following:A 7 mile cab ride cost $10.20, a 10 mile cab ride is $13.80. Find a linear equation that models a relationship bewtween the cost (c) and the distance (d).
\n" ); document.write( "----
\n" ); document.write( "You have 2 points (7,10,2) and (10,13.8)
\n" ); document.write( "0000
\n" ); document.write( "slope = (13.8-10.2)/(10-7) = 3.6/3 = 1.2
\n" ); document.write( "---
\n" ); document.write( "Form: y = mx + b
\n" ); document.write( "You know y = 10.2 when x = 7 and m = 1.2
\n" ); document.write( "-------
\n" ); document.write( "Solve for \"b\":
\n" ); document.write( "10.2 = 1.2*7 + b
\n" ); document.write( "b = 1.8
\n" ); document.write( "----
\n" ); document.write( "Equation:
\n" ); document.write( "y = 1.2x + 1.8
\n" ); document.write( "===================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "
\n" );