clairestdean
New member
- Joined
- Nov 7, 2019
- Messages
- 6
Consider y = −√x. Is y a function of x? Why or why not? Is it true that |y| is always less than x? Show that it is or give a counter example.
Please share your work/thoughts about this assignment.Consider y = −√x. Is y a function of x? Why or why not? Is it true that |y| is always less than x? Show that it is or give a counter example.
The graph of a function has to pass "vertical line test". What is the verdict on that test result?I think that y is a function of x because graphing the function I get f(x)=−√x has the same solutions as y = −√x.. I'm not sure if this makes sense though.
Nope. I don't get it.I think that y is a function of x because graphing the function I get f(x)=−√x has the same solutions as y = −√x.. I'm not sure if this makes sense though.
Provide an example of not passing.Graphing it, I don't think y=-√x passes.
It doesn't have to exist for all x, though. Does it pass the vertical line test where sqrt{x} exists?Graphing it, I don't think y=-√x passes.
That question is absolutely meaningless because it is incomplete.Consider y = −√x. Is y a function of x? Why or why not?
clairestdean, I suspect your algebra teacher will struggle with this. Press forward bravely.\(\displaystyle y=-\sqrt{x}\) is not a function on the set of real numbers.
Please put different questions in different threads.Is it true that |y| is always less than x? Show that it is or give a counter example.
\(\displaystyle y=-\sqrt{x}\) is not a function on the set of real numbers.
The statement that \(\displaystyle f\) is an function from set \(\displaystyle A\) to set \(\displaystyle B\) means:clairestdean, I suspect your algebra teacher will struggle with this. Press forward bravely.