We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website.
Please click on "Accept cookies" if you agree to the setting of cookies. Cookies that do not require consent remain unaffected by this, see
cookie policy and privacy policy.
DECLINE COOKIES

#1**+2 **

Here's an easy way to determine even and odd

If I put (-x) in for x and* I come back to what I started with*....then the function is even

If I put (-x) in for x and * all the original signs switch*....the function is odd

So...first one

x^2 - 2x + 1

(-x)^2 - 2(-x) + 1 = x^2 + 2x + 1

I don't come back with what I started with and all the signs are not switched...so...neither

Second one

x^2 + 1

(-x)^2 + 1 = x^2 + 1 ....I end up with what I started with....so....even

Last one

-2x + 1

-2(-x) + 1 = 2x + 1.....I don't come back with what I started with and the signs are not all switched either....so.....neither!!!!

CPhill Dec 20, 2018