Which situations can be represented by a linear function?
select each correct answer.
every year, luisa puts $10 into her savings account.
every day, the number of bacteria in the dish is 3 times what it was the previous day.
the barrel leaks 0.5 l of water each day.
a country's population increases by 0.8% each year.
multiple choice

Every year, Luisa puts $10 into her savings account.

The barrel leaks 0.5 L of water each day.

Step-by-step explanation:

 A linear function has the form

The rate of change for a linear function always remain constant.

If every year, Luisa puts $10 into her savings account.

Here, the rate of change remains constant each year=$10

If the barrel leaks 0.5 L of water each day.

The rate of change in the quantity of water is constant  i.e. 0.05 L each day.

The rest of other situations do not have constant rate of change.

answer:

step-by-step explanation:

answer: the distance

step-by-step explanation:

to calculate the distance d of a line segment with endpoints (x1, y1) and (x2, y2) use the formula d (x2 x1)2 (y2 y1)2. to calculate the midpoint of a line segment with endpoints (x1, y1) and (x2, y2) use the formula