What is the range of the function y = -|x|?
firstly, do you understand what |x| means?
What does it mean?
|x| means the "absolute value" of x. you might find this site useful in helping you understand this concept first: http://www.mathsisfun.com/numbers/absolute-value.html
I know what it means now. Would it be all real numbers
so what would |-3| equal?
3
correct. so now can you see what the range of y=-|x| would be?
I'm asking you for the choices - I'm asking you what you think is the answer.
what range of values would |x| cover?
Negatives and positives
how could it cover negatives? are you sure that you have really understood what |x| means. I would advise you to first study that link I gave you to make sure you fully understand what it means.
So first of all: absolute value means, whatever you plug in comes out to be positive. Well |0| is 0. So now if you have x, and you get a positive number when you put any x into an absolute value, then a negative times that positive number would give you a negative. So your range would be zero and all negatives
Join our real-time social learning platform and learn together with your friends!