Yoko is going to rent a truck for one day. There are two companies she can choose from, and they have the following prices. Company A charges an initial fee of $40 and an additional 90 cents for every mile driven.
Company B charges an initial fee of $75 and an additional 40 cents for every mile driven
For what mileages will Company A charge less than Company B?
Write your answer as an inequality, using m for the number of miles driven.
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DSD
5

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation:

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18