Question

In a sequence of numbers, a4=12, a5=14, a6=16, a7=18, and a8=20.

Which equation can be used to find the nth term of the sequence, an?

a) an=2n+4

b) an=2n+12

c) an=3n

d) an=3n+12

I'm pretty sure it's a, but I just wanna check if I did the work right!

Answer 1

you are right, it's a)❤

Step-by-step Step-by-step explanation:

a4=12---> put the formula in it

2×4+4=12

a5=14---> 2×5+4=14

a6=16---> 2×6+4=16

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hope it helps❤