Kate is x years old
Lethna is 3 times as old as Kate.
Mike is 4 years older than Lethna.
Write down an expression, in terms of .x, for Mike's age.

Expression for Mike's age is .

Step-by-step explanation:

Kate is x years old

Kate = x years old

Lethna = 3 times of Kate =

Expression for Mike's age will be =

Mike's age = 4 years older than Lethna

 ⇒ Lethna's age + 4

⇒

Expression for Mike's age is .

It is not a direct variation becuase though it goes through the orgin, its curved rather than straight.