Question

The first four terms of a sequence are shown below.

8, 5, 2, -1

Which of the following functions best defines this sequence?

f(1) = 8, f(n + 1) = f(n) + 3; for n ≥ 1

f(1) = 8, f(n + 1) = f(n) - 5; for n ≥ 1

f(1) = 8, f(n + 1) = f(n) + 5; for n ≥ 1

f(1) = 8, f(n + 1) = f(n) - 3; for n ≥ 1

Answer 1

You are subtracting by three in the sequence. There is only one option that will let you subtract by 3. That is the last option, D

Answer 2

so its d

Answer 3

he just said that.

Answer 4

thanks if you don't mind i have more questions can u help me with them

Answer 5

Yeah sure.

Answer 6

Which of the following statements best describes the effect of replacing the graph of y = f(x) with the graph of y = f(x) + 20?

The graph of y = f(x) will shift left 20 units.

The graph of y = f(x) will shift down 20 units.

The graph of y = f(x) will shift up 20 units.

The graph of y = f(x) will shift right 20 units.

Answer 7

Well you know that + 20 is the y intercept right?

Answer 8

yea

Answer 9

That leaves with you shifting up or down. Because it is positive, which way do you think you are going to shift?

Answer 10

up

Answer 11

thanks hers another

Answer 12

Every week Annie plants 2 saplings in her garden. The function below shows the total number of saplings f(w) in her garden after w weeks.

f(w) = 2w + 3

Which statement best describes the y-intercept of the graph of the function?

It is equal to 3 and represents the original number of saplings in Annie's garden.

It is equal to 2 and represents the original number of saplings in Annie's garden.

It is equal to 3 and represents the number of saplings in Annie's garden at the end of the first week.

It is equal to 5 and represents the number of saplings in Annie's garden at the end of the first week.

Answer 13

this one I put the 1st one

Answer 14

Correct

Answer 15

Choose the graph below that correctly represents the equation 2x + 4y = 24.

Answer 16

Put it into y =mx + b then plot b ( y intercept_ and do rise/run

Answer 17

Subtract x from both sides then divide everything by 4 to just have y

Answer 18

so its A

Answer 19

How did you get A

Answer 20

subtracted 2 on both sides and it became
4y=22 then dived and got 5.5

Answer 21

No... 2x + 4y = 24
-2x -2x

4y = -2x + 24
/4 /4 /4

y = -1/2 + 6

Answer 22

PLot that

Answer 23

Plotting it at +6 on the y, then you would go down 1 and right 2

Answer 24

So yes it A

Answer 25

1 more question
Choose the slope-intercept equation of the line that passes through the point shown and is perpendicular to the line shown.