Again, to tell if a relation is a function, they must pass the vertical line test, draw lines down the x axis and make sure the line does not intercept the relation twice or more.
The correct answer is the one on the bottom left. You can draw any vertical lines down the graph and it would not intercept two points or more at once
In 5 years the plant will be 25cm taller.
The answer is24. Explenation: 2 x (49.5 - 37.5)
2 x 12=
24
10:12, it can also be written as 5:6 though if you have to simplify it.
