Negative difference

Find four arithmetic progression members between 7 and -6.

Correct answer:

a2 =  4.4
a3 =  1.8
a4 =  -0.8
a5 =  -3.4

Step-by-step explanation:

a3=a2+d=522+513=522+(13)=59=1.8
a4=a3+d=59+513=59+(13)=54=0.8
a5=a4+d=54+513=54+(13)=517=3.4



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