No, you are trying to find n.
Phrased another way:
Which term in the sequence is equal to -268
let that term number be n
remember tn = a + (n-1)d
from your previous post
a =
d =
-268 = 12 + (n-1)(-7)
-280 = -7n + 7
-287 = -7n
n = 41
so the t41 = -268
Do the same thing for tn = 350
remember , that n has to be a positive whole number, or else there is not such term.
I've done the second part to the Math Formula post. It was determine the 19th term of the sequence which I did.
Now it says..which of the numbers -268 and -350 are terms of the sequence?
I was doing something like this:
tn = -7 (-268) +19
I was plugging -268 as n. But that just confused me. How do I figure this out?
2 answers
I was born in 2010