Question

What is the pattern in the sequence graphed below?

a.Multiply the term number by –1, then add 8.
b.Multiply the term number by –1, then add 9.
c.Add 8 to the term number, then multiply by –1.
d.Add 9 to the term number, then multiply by –1.

Answer 1

The answer would be B.
If you look at it like a slope-intercept problem, the slope is negative one and the y intercept would be 9. So multiply by -1 and add 9

Answer 2

b.Multiply the term number by –1, then add 9.

Explanation:

If we look at the graph, we can see that it is decreasing at a constant rate. This means same pattern is happening at each step.

The correct pattern here is option B

Multiply the term number by –1, then add 9.

We can check this. Say to get 3 at x- axis, we will find like:

`6(-1)+9=-6+9=3`

Similarly, to find 8 at x -axis, we will calculate:

`1(-1)+9=-1+9=8`

Therefore, option B is correct.

Options C and D will give negative numbers as anything multiplied by -1, will give negative numbers.