# SOLUTION: Cost of car depends on km driven. Write lineqr equation expressing dollars per month as function of km per month if given \$158 month if drive 300 km and \$230 a month if drive 1500

Algebra ->  Algebra  -> Linear-equations -> SOLUTION: Cost of car depends on km driven. Write lineqr equation expressing dollars per month as function of km per month if given \$158 month if drive 300 km and \$230 a month if drive 1500      Log On

 Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations! Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

 Algebra: Linear Equations, Graphs, Slope Solvers Lessons Answers archive Quiz In Depth

 Click here to see ALL problems on Linear-equations Question 124386: Cost of car depends on km driven. Write lineqr equation expressing dollars per month as function of km per month if given \$158 month if drive 300 km and \$230 a month if drive 1500 km. Predict cost for 1000 ad 2000 km driven a month.Answer by checkley71(8403)   (Show Source): You can put this solution on YOUR website!SERTING UP X & Y VALUES FOR EACH SITUATION WE HAVE: (158,300) & (230,1500) NOW WE FIND THE SLOPE: (1500-300)/(230-158)=1200/72=16.67 (1000-300)/(X-158)=16.67 16.67(X-158)=700 16.67X-2633.86=700 16.67X=700+2633.86 16.67X=3333.86 X=3333.86/16.67 X=\$200 COST FOR DRIVING 1000KMs. ---------------------------------- (2000-300)/(X-158)=16.67 16.67(X-158)=1700 16.67X-2633.86=1700 16.67X=1700+2633.86 16.67X=4333.86 X=4333.86/16.67 X=\$260 COST FOR DRIVING 2000KMs.