# Math Help - Functions

1. ## Functions

If and , then c is a function of b.
True or False?

2. Originally Posted by purplec16
If and , then c is a function of b.
True or False?

Well, in $c=a^2+3a$ substitute $a=3b^2-7b$ and you thus get a function of b...

Tonio

3. I dont understand though

4. What definition of function are you using?