Answer:
Explanation:
There is a standard cost just for renting the car.
Let the daily cost = x
Let the addon be = z The add on is the amount they charge just to give you the keys and do the paper work. It might include insurance.
y = z + 4x
y = 180
z = ??
x = 4
y = 325
z = ??
x = 9
Equation 1: 180 = z + 4x
Equation 2:325 = z + 9x
Subtract (1) from (2)
325 = z + 9x
180 = z + 4x Subract
145 = 5x Divide by 5
145/5 = 5x/5
x = 29
What you have found is the daily cost. Now you have to find the fixed cost.
y = 29x + z
180 = 29*4 + z
180 = 116 + z Subtract 116 from both sides
180 - 116 = z
z = 64
Answer: Part A
y = 29x + 64
Part B
f(x) = 29x + 64
Part C
So what are the intervals?
Vertically each square is worth:
Horizontally: each square is worth.
How is the y axis labeled?
How is the x axis labeled? [e
Graph the points by letting
x = 2 days
x = 4 days
x = 6 days
I'm including the graph. You should be able to answer it just by looking at the graph. No single answer will be wrong. There are all sorts of ways of setting up the axis.