Question

Diketahui fungsi f(x)=x2+1 dengan domainnya A={-2,-1,0,1,2} kodomainnya himpunan bilangan real
Tentukan range-nya

Answer 1

F (-2) = -2*2+1 = -3
f (-1) = -1*2+1 = -1
f(0) = 0*2+1 = 1
f(1) = 1*2+1 = 3
f(2) = 2*2+1 = 5
range {-3,-1,1,3,5}