Each month, you start with gigabytes of data and use gigabyte per day. The table shows the amount of data that your friend has left days after the start of each month. Who runs out of data first
Step 1: Finding when i will finish gigabytes data.
Given, I am starting with gigabytes of data .
I used gigabyte per day so, I will finish gigabytes in,
days
Step 2: Finding when friend will finish gigabytes data.
For friend lets make function from table.
From the table, ordered pair
Function, (From table)
Lets find -intercepts,
So,
Friend will finish data in days.
Hence, I am running out of my data first.