Written down in terms of n, an expression for the nth term of the following sequences 9,11,13,15,17

2n+7

Step-by-step explanation:

Use this formaula whenever dealing with sequences where the difference between the numbers is constant.

a(n-1)+b

where a is the difference between the numbers

and

b is the first term, in this case, 9

So

2(n-1)+9

= 2n-2+9

= 2n+7

Now to check your answer, substitute a value of n into the equation, for example 3, and calculate.

2(3-1)+9= 13

If you look at the sequence, you'll see that the 3rd term is 13, so the expression is correct.

Hope this helps!

step-by-step explanation:

a'(12.5,11.25)

slope=(y1-y2)/(x1-x2)