Using the domain values {-1, 0, 4}, find the range values for relation y=2x-7.

Range={-1, 0, 4}
Range={-9, -7, 1}
Range={-5, -7, 9}
None of the above

Question

Using the domain values {-1, 0, 4}, find the range values for relation y=2x-7.

 Range={-1, 0, 4} 
 Range={-9, -7, 1} 
 Range={-5, -7, 9} 
 None of the above

anonymous · Answer

its the second

hero · Answer

Hint: x = {-1, 0,4}

anonymous · Answer

Basically pluck in the numbers from the domain, and whatever you get for the y= will be your range.

hero · Answer

Please don't give answers @curiousman

anonymous · Answer

domain is x and range is y, so what u gotta do is substitute the x values which are the domains into the equation to solve for y, range, for all of these values :)

anonymous · Answer

why? thank you everyone!!!

anonymous · Answer

like for example, if the domain is 2, then what is the range.
 y= 2x - 4
y= 2(2) - 4
y = 4-4
y= 0
so then when x, the domain is 2, then y, range is 0 
:) u got it?