what does domain and range mean again?

Question

anonymous · Answer

range means like the difference between the numbers

jim_thompson5910 · Answer

the domain is the set of all possible input values for a function

the range is the set of all possible output values for a function

anonymous · Answer

Domain: The domain of a function is the set of all possible input values (usually x), which allows the function formula to work.

Range: The range is the set of all possible output values (usually y), which result from using the function formula.

anonymous · Answer

so how would i find the domain and range of y=(x=1)^2-3

jim_thompson5910 · Answer

The domain of y=(x+1)^2-3 is the set of all real numbers (since you can plug in any number in for x) 


The range of y=(x+1)^2-3 is the set of all numbers greater than or equal to -3 (since this is the minimum value of y)