It's important to study and study. I recommend studying the homework or study sheet the day before the test. Most likely the teacher has added a similar problem on to the test. Add a friend to help you study.
To make it fun, buy candy and quiz yourself or friends!
If you get a problem right, them give yourself candy.
Series is 15, 12, 9…,
Difference between terms is 3
By Arithmetic progression
a_{n}=a_{1}+(n-1)d
a_n = the nᵗʰ term in the sequence
a_1 = the first term in the sequence
d = the common difference between terms
So nth term is a(n) = 15 + (n-1)*3
= 15+ 3n -3
= 12 + 3n
Answer:
9 units because eqidistance from center
this becomes (n+7) x (n+7) which becomes
n^2 +14n +49
It would be 0 because as you go along it doesn't go up but keeps moving. An undefined slope is up and down/vertical.
