The sides could be 1,14 or 2,7
It's 
which gives 5.23 times increase in 10 years, so 523% of oryginal price
To check if a relation is a function, given a mapping diagram of the relation, use the following criterion: If each input has only one line connected to it, then the outputs are a function of the inputs.
You can can copy a line segment by making sure the line is straight
