SOLUTION: cane you help me with this questions please? the cost of running a family carries $500 per year for fixed cost plus variable cost of $0.50 for every km traveled Q1. what is the e

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: cane you help me with this questions please? the cost of running a family carries $500 per year for fixed cost plus variable cost of $0.50 for every km traveled Q1. what is the e      Log On


   



Question 893822: cane you help me with this questions please?
the cost of running a family carries $500 per year for fixed cost plus variable cost of $0.50 for every km traveled
Q1. what is the equation for the total anual cost?
Q2. what is the gradient of this line and its meaning?

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
This is a linear relation
If you let +d+ = km traveled,
then the slope would be +.5+
-----------------------------
Let +C+ = the total cost in dollars
+C+=+.5d+%2B+500+
---------------------
The gradient is the slope, +.5+
This this the rate at which you pay
for each km driven.
$.5 times 1 km driven = $0.50