(x)=x^2-7 is this a one to one function.
E Elaine New member Joined Sep 10, 2005 Messages 10 Sep 10, 2005 #1 (x)=x^2-7 is this a one to one function.
stapel Super Moderator Staff member Joined Feb 4, 2004 Messages 16,583 Sep 10, 2005 #2 Elaine said: (x)=x^2-7 is this a one to one function. Click to expand... I'm sorry, but I don't know what "(x)" means. Please reply with clarification. Thank you. Eliz.
Elaine said: (x)=x^2-7 is this a one to one function. Click to expand... I'm sorry, but I don't know what "(x)" means. Please reply with clarification. Thank you. Eliz.
tkhunny Moderator Staff member Joined Apr 12, 2005 Messages 11,339 Sep 10, 2005 #3 Elaine said: f(x)=x^2-7 is this a one to one function. Click to expand... I'm going with the modification above. No. See that "x^2"? That's the problem. What happens when you evaluate f(2) and f(-2)?
Elaine said: f(x)=x^2-7 is this a one to one function. Click to expand... I'm going with the modification above. No. See that "x^2"? That's the problem. What happens when you evaluate f(2) and f(-2)?
stapel Super Moderator Staff member Joined Feb 4, 2004 Messages 16,583 Sep 10, 2005 #4 Ah. That would make more sense. Eliz.
