Determine the range of the function f(x)=x^3-1 when the domain is {0,1,2}

The range will be ur y (or f(x) values...the domain is ur x values. So it is just a matter of subbing.

f(x) = x^3 - 1when domain (x) = 0
f(0) = 0^3 - 1
f(0) = -1

f(x) = x^3 - 1when x = 1
f(1) = 1^3 - 1
f(1) = 0

f(x) = x^3 - 1...when x = 2
f(2) = 2^3 - 1
f(2) = 8 - 1
f(2) = 7

so ur range f(x) = {0,-1,7} when ur domain (x) = {0,1,2}

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)