find values m and b so that y =mx+b models the monthly costs of driving the car x miles, what does the value of b represent, m=?, b=?

Question

find values  m and b so that y =mx+b models the monthly costs of driving the car x miles, what does the value of b represent, m=?, b=?

anonymous · Answer

find values  m and b so that y =mx+b models the monthly costs of driving the car x miles, what does the value of b represent, m=?, b=?

anonymous · Answer

anyone?

ash2326 · Answer

@Zephious we have 
$$y=mx+b$$
y= monthly cost of the car, if you put x=0 then we'll get y=b
Do you get this?

anonymous · Answer

a little lost sorry

ash2326 · Answer

If you put x=0, what do you get?

anonymous · Answer

monthly cost =b?

ash2326 · Answer

yeah so b represents the cost even if the car is stand still

anonymous · Answer

now assume that it costs 179.10 per month for insurance and car payments, and 45 cents per mile for gas etc ....

ash2326 · Answer

then 
b=179.10 ( fixed cost per month)
and m= 0.45  ( cost per mile)

anonymous · Answer

that was alot easier to figure out than i thought, algebra can be tricky lol

ash2326 · Answer

You just have to try, it's easy:)

anonymous · Answer

Math to me is like the bubonic plague, lol

anonymous · Answer

Thank you for your help