Question

My son and I are stuck on this one. Can anyone give some insight to this problem? Thank you.

Answer 1

I made is clear for you, now you may match each one

Explanation:

f(1)= 11, f(n)= 3*f(n-1)

• 11*3= 33, 33*3= 99, 99*3= 297, ...

• 11, 33, 99, 297...

⊕ middle

f(1)= -18, f(n)= f(n-1)+21

• -18+21= 3, 3+21= 24, 24+21= 45, ...

• -18, 3, 24, 45, ...

f(1)= -18, f(n)= f(n-1) + 22

• -18+22= 4, 4+22= 26, 26+22= 48, ...

• -18, 4, 26, 48, ...

f(1)= -18, f(n)= 2*f(n-1)

• -18*2= -36, -36*2= -72, -72*2= -144, ...

• - 18, -36, -72, -144...

⊕ bottom

f(1)= -18, f(n)= 6*f(n-1)

• -18*6= -108, -108*6= -648, -648*6= -3888, ...

• - 18, - 108, - 648, -3888, ...

⊕ top

f(1)= 11, f(n)= f(n-1) + 22

• 11+22= 33, 33+22= 55, 55+22= 77, ...

• 11, 33, 55, 77, ...