Question

HELP PLZ
Use the graph to determine the function's domain and range.



A. domain: [0, ∞) range: [-1, ∞)

B. domain: (-∞, ∞) range: [-1, ∞)

C. domain: [0, ∞) range: [0, ∞)

D. domain: [0, ∞) range: (-∞, ∞)

Answer 1

i picked B but i was wrong

Answer 2

Domain is all x Values. If you see the curve it starts from the point (0,-1). So minimum value x can take is zero and the point is inclusive. and the curve goes on and on after that for all positive values of x. So the domain is \[[0,\infty)\]
Range similarly the lowest point is (0,-1) where y value is -1. so lowest value y can take is -1 and the goes on and on for y values. So the Range is \[[-1,\infty)\]

Answer 3

wow thanks @rajee_sam i was confused at first but i get it now :-)