Question

Can someone help me with these Algebra 1 questions, they are pretty tough and i need help since i don't fully understand it yet.

Answer 1

I will answer second attachment and after since I can't see the firs attachment



2nd attachment

if x is negative, then the first number gets infinitely small
look at the second number, the first 2 is -2 which is wrong since it should be +2
3rd option is not because if x=-2, then y=1
answer is D


3rd attachment
2nd: f(x)=60*1.15^x
3rd: no xint
6th: after 7.86 years value tripples
7th maybe: after 8 years value is 183.51, not exatly 184.00


4th attachment
nth score is
f(n)=57+4(n-1)
9th is
f(9)=57+4(9-1)
57+32=89
answer is C 89


5th
f(t)=23000(1.02)^t
t=time in years from 23000