Which function describes the arithmetic sequence shown?
1, 7, 13, 19, 25, 31, ...
A)
ƒ(x) = 6x + 5
B)
ƒ(x) = 5x + 6
C)
ƒ(x) = 5x − 6
D)
ƒ(x) = 6x − 5
3 answers
this is my question I forgot to put the answer I think its B
did you check your answer?
x y(5x+6)
1 11
2 16
...
Not even close. Why not show your work? You must have been just guessing.
Note that as x changes by 1, y changes by 6. So, you need to start off with
y = 6x
So, it's either A or D.
when x=1, 6x = 6, but y(1) = 5, so D is clearly your choice.
x y(5x+6)
1 11
2 16
...
Not even close. Why not show your work? You must have been just guessing.
Note that as x changes by 1, y changes by 6. So, you need to start off with
y = 6x
So, it's either A or D.
when x=1, 6x = 6, but y(1) = 5, so D is clearly your choice.
What made you think it was B ?
The change between consecutive numbers is 6, so
expect to see a 6x
when x=1, 6x becomes 6 but it should be 1, so we have to subtract 5
looks like 6x - 5
The change between consecutive numbers is 6, so
expect to see a 6x
when x=1, 6x becomes 6 but it should be 1, so we have to subtract 5
looks like 6x - 5
4 answers