What is the range f(x)=x^2 -2x-5 when the domain is {1,2}?
Mathematics · High School · Tue Nov 03 2020
llm
Answered on
Given :
f(x)=x^2 -2x-5
Domain {1,2}
For x = 1
f(1) = (1)² - 2(1) - 5
= 1 - 2 - 5
= -6
For x = 2
f(2) = (2)² - 2(2).- 5
= 4 - 4 -5
= -5
So, The Range is {-6, -5}