Answer:
The y-intercept is 40. This is the cost of registration ⇒ last answer
Step-by-step explanation:
* Lets explain how to solve the problem
- Patrick wanted to gather data about the cost of joining a community
pool in his area
- He plotted the data and determined that the average community
pool membership cost consists of a one-time registration fee and
a monthly fee
∴ The cost consists of two parts:
# Part A: one-time registration fee, it is a fixed amount not depend on
any other condition
# Part B: monthly fee, it depends on the number of months
- He modeled that by the equation y = 15 x + 40, where
# y is the cost for the membership
# 15 is the monthly fee
# x is the number of months
# 40 is the one-time registration
- The form of the equation is y = mx + c, where c is the y-intercept
∴ The y-intercept in the equation y = 15 x + 40 is 40
∴ The y-intercept is the one-time registration fee
* The y-intercept is 40. This is the cost of registration
, and dividing gives
.
, since
