# How do you find the term n=13, given #a_1=-5# and d=7?

##### 1 Answer

Feb 22, 2017

#### Explanation:

For an

#color(blue)"arithmetic sequence"# the nth term is found by using the nth term formula.

#color(orange)"Reminder " color(red)(bar(ul(|color(white)(2/2)color(black)(a_n=a_1+(n-1)d)color(white)(2/2)|)))#

#rArr a_(13)=-5+(12xx7)#

#color(white)(rArra_(13))=-5+84#

#color(white)(rArra_(13))=79#