Answer:
I would choose f(x)= 3|x-1|
Step-by-step explanation: These are the point on the graph.
(X,Y)
-1,6
0,3
1,0
2,3
3,6
In this question, you are only able to cancel out the (x + 5). The others are unable to be cancelled.
Let m the tens digit and n the ones
the Original number is 10m+n
7(m+n) =10m+n
7m+7n=10m+n
6n=3m
Reversing the number 10n+m
10n+m=18+n+m
9n=18
n=2
6n=3m
6(2)=3m
3m=12
m=4
the number is 10m+n=10(4)+2=42
