1. y=x^2+3x-4, find Parity of a function
Solution:
y=x^2+3x-4
Parity :
Even Function : A function is even if f(-x)=f(x) for all x in R
Odd Function : A function is odd if f(-x)=-f(x) for all x in R
f(-x)=(-x)^2+3(-x)-4
f(-x)=x^2-3x-4
f(x)!=f(-x)
x^2+3x-4 is not an even function
-f(x)=-(x^2+3x-4)
-f(x)=-x^2-3x+4
f(x)!=-f(x)
x^2+3x-4 is not an odd function
:. x^2+3x-4 is neither even nor odd function
This material is intended as a summary. Use your textbook for detail explanation.
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