Question

Below is an arithmetic sequence.

–7, –3, A, B, C, ...

Find the values of A, B, and C.

A =

__________

B =

__________

C =

Answer 1

Answer:a=1 b=5 c=9

Explanation:

-7,-3,a,b,c,...... Is the arithmetic sequence

first term=p=-7

Common difference=d=-7-(-3)=-4

a is the 3rd term=-3+4=1

b Is the 4th term=1+4=5

c is the 5th term=5+4=9

Therefore

a is 1

b is 5

c is 9