dommalb
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Please help! 30 points!

1) One year after a tree is planted, the tree is 3.5 ft tall. Each year, the tree grows 1.5 ft.
What function, written in sequence notation, models the height of the tree n years after it is planted?



an=1.5n+3.5

an=3.5n+1.5

an=1.5n+2

an=5n+1.5



2) What function equation is represented by the graph?


f(x)=−1/2x−1

f(x)=−2x−1/2


f(x)=−x−2

f(x)=−2x−1


3) Earl mows lawns one weekend. He earns $12 for each lawn that he mows. He spends $40 on gas and other supplies.
What function equation represents Earl's profit from mowing x lawns?



f(x)=12x+40

f(x)=40x−12

f(x)=12x−40

f(x)=40x+12


4) What function equation is represented by the graph?



f(x)=−1/4x−3

f(x)=1/4x−3

f(x)=−4x−3

f(x)=1/4x+3


5) What linear function equation can be represented by the set of ordered pairs?
{(−4, −6), (0, −3), (4, 0), (12, 6)}

Enter your answer in the box.

f(x)=

Respuesta :

Answer:

1) The equation of the line would be an = 1.5n + 3.5

Step-by-step explanation:

We know this because the rate of growth works as the slope. Therefore, it must be multiplied by the variable (n). We also add the original height at the end as the constant.

an = 1.5n + 3.5

Answer:

1 is an=3.5n+1.5

2. is f(x)=−2x−1

3. is f(x)=12x−40

4. is f(x)=2/3x+1

5. is 3/4 x -3

Step-by-step explanation:  took the test this was the correct answers to this one to get it all right.