A business traveler rents a car for $75 a day, and $0.50 for each mile. If the trip will last 3 days and the traveler can spend no more than $400, how many miles can be driven? Explain your reasoning and express the formula as an inequality

Question

ajspeller · Answer

No more that 400 is the same as saying less than or equal to 400

The initial price is $75.  This is the y-intercept

.5 is the slope

y<=mx+b

Put it all together and solve for x

evansanchez · Answer

would the slope be " mx " or " b " ??? @ajspeller

ajspeller · Answer

m is the slope

evansanchez · Answer

so 75=.5+b, what would be " b " ? 400? @ajspeller

evansanchez · Answer

75=0.5x+400? @ajspeller