Sequence 3

Write the first 5 members of an arithmetic sequence: a4=-35, a11=-105.

Correct answer:

a1 =  -5
a2 =  -15
a3 =  -25
a4 =  -35
a5 =  -45

Step-by-step explanation:

35=a1+(41)d 105=a1+(111)d  d=10 a1=5 
a2=a110=15
a3=a210=25
a4=a310=35
a5=a410=45



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