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Write an equation for the nth term of the arithmetic sequence. 7,3,-1,-5

User Ben Dyer
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6 votes

Answer:

An =-4n+11

Step-by-step explanation:7,3,-1,-5

the common diference is : d = ( -5)-(-1)=(-1)-(3)=(3)-(-7)=- 4

the firt term is A1 = 7

the n-ieme term is : An = A1 +(n-1)d

An =7-4(n-1)

An =-4n+11 ( the nth term)

User PAcan
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