the cost of driving a car includes both fixed costs and mileage costs. assume that it costs $168.30 per month for insurance and car payments and $0.42 per mile for gasoline, oil, and routine maintenance. A) find values for m and b so that y=mx+b models the monthly cost of driving the car x miles. B) what does the value of b represent?

Question

anonymous · Answer

@whpalmer4

anonymous · Answer

@Zarkon

anonymous · Answer

@ganeshie8

anonymous · Answer

@Jhannybean

ganeshie8 · Answer

$168.30 per month for insurance and car payments and $0.42 per mile for gasoline, oil, and routine maintenance.

ganeshie8 · Answer

$168.3 is fixed cost. (it doesnt depend on how much u travel)

anonymous · Answer

corrcect

ganeshie8 · Answer

$0.42  is vaiable cost. (it depends on how many miles u travel)

ganeshie8 · Answer

lets say you travel x miles per month

ganeshie8 · Answer

then, 

monthly cost = fixed cost + variable cost
                        = 168.3  + .42x

ganeshie8 · Answer

you're still wid me ha ? :)

anonymous · Answer

yes

ganeshie8 · Answer

rewrite it like this :-

monthly cost = .42x + 168.3

ganeshie8 · Answer

compare it with :-
 y = mx + b 

m = ?
b = ?

anonymous · Answer

ok so y=.42x+168.3
m=.42
b=168.3

anonymous · Answer

now the value of b would be the fixed cost of owning the car for one month without driving it

ganeshie8 · Answer

yes ! you're super smart !!!