The second one!!! For further help use cymath.com
An exponential function displays either a growth or decay behavior going from a low steep to a high steep.
Answer:
y=4x-9
Step-by-step explanation:
add 4x to both sides to isolate y
Answer:


Step-by-step explanation:
Given

Solving (a): The cost function:
From the given parameter, it shows that the number of floor has no effect on the floors.
So, represent the floors with x.
The cost function is:

Solving (b): The slope and its interpretation
A function is represented as:

Where:

By comparing:
to 

So:

<em>What it means is that, no matter the number of floors, the cost remains unchanged.</em>