98 points // answer asap // no guessing // answer all parts the cost of renting a car for a day is $0.50 per mile plus a $15 flat fee. (a) write an equation to represent this relationship. let x be the number of miles driven and y be the total cost for the day. (b) what does the graph of this equation form on a coordinate plane? explain. (c) what is the slope and the y-intercept of the graph of the relationship? explain.

y = .5x +15

The graph is a line.

The slope is .5   and the y intercept is 15.  The flat fee is the y intercept and the cost per mile is the slope.

Step-by-step explanation:

The flat fee is the y intercept and the cost per mile is the slope

The total cost for the day is equal to the cost per mile * the number of miles driven plus the flat fee.  Let x be the number of miles driven and y be the total cost for the day.

We can use y = mx+b

y = .5x +15

When we graph, x must be greater than 0 because we cannot drive negative miles.

The slope is .5   and the y intercept is 15.  The flat fee is the y intercept and the cost per mile is the slope.

341

step-by-step explanation:

all you have to do is 9x31 (which equals 279) and then 20x31 (which equals 620). then you have to subtract. 620-279=341.

what is the model?

step-by-step explanation: