Answer:

Step-by-step explanation:
A linear function has the following format:

In which a is the slope(rate of change) and b is the y-intercept, that is, the value of y when x = 0.
Rate of change of 3
This means that 
So

A solution at (6, 12).
This means that when x = 6, y = 12. So



The linear function is:

Answer:
Simple
32-16=t
so the answers would be 16
Step-by-step explanation:
Answer:
A. 2 feet long
Step-by-step explanation:
the weight starts at 0.5 lbs = 10 inches, and after that every extra 0.5 lb means it's 2 inches longer. so the last data point we have is 2.5 lbs = 18 in, so we can assume that 3.0 lbs = 20 in, 3.5 lbs = 22 in, and 4.0 lbs = 24 in, and 24 inches is equal to 2 feet
Answer:
y = 5
Step-by-step explanation:
22.5(10-y)+27.5y=250

Combind like terms,

Subtract 225 from both equations to isolate the variable.

Divide both sides by 5 to isolate the variable and solve it.
