Answer:
2.75
Step-by-step explanation:
0.10 represents the rate at which prices have increased since 1980..
2.75 represents the price in 1980
This can be confirmed by inputting 0 as the value of x.
2.75+0.10(0) = 2.75
x = 0
y = -4
negative 4 cuz the line goes down, meaning it's negative
reffrents a number
3.50x= t
x square feet of teh floor
t= total cost