Question

The formula for any arithmetic sequence is an = a1 + d(n - 1), where a represents the value of the nth term, a1 represents the value of the first term, d represents the common difference, and n represents the term number. What is the formula for the arithmetic sequence -7, -3, 1, 5, ...? a an = 4 + (-7)( n - 1) b an = -7 + 5( n - 1) c an = -7 + 4( n - 1) d an = 5 + 4( n - 1)

Answer 1

Answer:

c

Step-by-step explanation:

because d is taken as common difference here which is -3-(-7) :4

and a is taken as the first term of given a. p

so,according to formula -7+4(n-1) is the right answer

hope my answer helped you

Answer 2

Answer: Given A.P. is -7,-3,1,5......

here first term (a1) is -7 and common diff is d=-3-(-7)

d=7-3=4

so, by formula an= -7+4(n-1) which is c option i.e. correct .

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