Question

1) What is the domain of the relation {(-2,4),(-1,5),(-1,6),(0,5)}
A) {-2,-1,0} B) {-2,-1} C) {2,4,5} D) {4,5,6}

2) What is the domain of y=√x
.
A) x ≥ 0
B) x ≤ 0
C) x ≥ 1
D) all real numbers

3) What is the range of y = x2?
A) y ≥ 0
B) x ≥ 0
C) y ≤ 0
D) all real numbers

Answer 1

1. a. {-2, -1, 0}
2. d. all real numbers  (i think)
3. d. all real numbers (i think)