y = 12000x + 35000
When Mr. Nicolas began recording, it means, at 0 hour, how many tortillas was produced?
Subs x by 0.
y = 12000.0 + 35000
y = 0 + 35000
y = 35000
When Mr. Nicolas began recording the data, 35,000 tortillas had already been produced
The total number of tortillas produced 2 hours after the he began, it means, when x = 2
y = 12000 . 2 + 35000
y = 24000 + 35000
y = 59000
The total number of tortillas produced 2 hours after he began recording the data was 59,000
The total number of tortillas produced _ hours after he began recording the data was 85,000
Now we have y but not x.
y = 12,000x + 35,000
85,000 = 12,000x + 35,000
85,000 - 35,000 = 12,000x
50,000 = 12,000x
x = 50/12
x = 25/6
x = 4,1666...
Rounding
x = 4,167