0 like 0 dislike

State whether each of the following equations are functions or not:

  1. $x+y = 4$
  2. $y=\frac{x}{4}$
  3. $y=2^x$
  4. $x^2 + y^2 = 4$
in Grade 12 Maths by Bronze Status (5.9k points)
edited by | 67 views

1 Answer

0 like 1 dislike
All of them are functions. For each possible value of x there is only one possible value for y. Even when x is negative or zero, y will always have an unique value.
by Wooden (1.7k points)

No related questions found

Welcome to MathsGee Open Question and Answer Bank, a platform, where you can ask Maths and Science questions and receive answers from other members of the community. Help is always 100% FREE!
MathsGee QnA is the knowledge-sharing community where millions of students and experts put their heads together to crack their toughest homework questions.

Enter your email address: