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: (-∞, ∞)

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: (-∞, ∞)

anonymous · Answer

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anonymous · Answer

i picked B but i was wrong

rajee_sam · Answer

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 $$[-1,\infty)$$

anonymous · Answer

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