PLEASE HELP WILL GIVE A MEDAL AND A FAN
Given the function f(x) = x^2 - 2x, find f(-1) and f(1).

Based on your answers, determine if the function is even. Explain your reasoning.

Question

PLEASE HELP WILL GIVE A MEDAL AND A FAN
Given the function f(x) = x^2 - 2x, find f(-1) and f(1).

Based on your answers, determine if the function is even. Explain your reasoning.

anonymous · Answer

for f(-1) just plug in -1 for x in the equation

anonymous · Answer

I did. I don't know how to explain. It is even, isn't it?

anonymous · Answer

does f(-1)=f(1)?

anonymous · Answer

Um. No?

anonymous · Answer

if they aren't equal then the function is odd

anonymous · Answer

Oh, okay. How do I explain it?

anonymous · Answer

Just say that an even equation will have the same answer for both the positive and negative value, and an odd equation will have a different answer for the the positive and negative value.

anonymous · Answer

In this case it's odd: f(-1)=3 which isn't the same as f(1)=-1

anonymous · Answer

Thank you so much!

anonymous · Answer

no problem