Question

please help!! 9th grade math domain and range k12 math use the grid... here's the answer options... A.) domain: {x|x€ℝ} and range: {y|-6 ≤ y ≤ 6} B.) domain: {x|-2 ≤ x ≤ 2} and range: {y| -10≤ y ≤ 10} C.) domain: {x| -2 ≤ x ≤ 2} and range: {y| -6 ≤ y ≤ 6} D.) domain: {x|x€ℝ} and range: {y|y€ℝ} ALSO PLEASE SHOW HOU DID IT I NEED TO UNDERSTAND THIS PLEASE AND THANK YOU!!!

Answer 1

ok it's simple, you see that the graph is a line that can be extended to infinity, this means that it can take any value both sideways, up or down

So the right option is D

because X can be any real value and the same for Y