Determine on which intervals the function is increasing and decreasing.
f(x) = -(x - 9)2 + 8

Question

Determine on which intervals the function is increasing and decreasing.  
f(x) = -(x - 9)2 + 8

ganeshie8 · Answer

sketching it may help

anonymous · Answer

Ok so first, Alyy, is it f(x) = -(x - 9)2 + 8 or 
f(x) = -(x - 9)^2 + 8

Remember the ^ sign changes everything like I told you before

anonymous · Answer

ok

anonymous · Answer

So does it have a ^ or no?

f(x) = -(x - 9)2 + 8

or 

$$f(x) = -(x - 9)^{2} + 8$$

anonymous · Answer

http://my.omegamath.com/indexMenu.php3?page=instruction%2FintroMenu.php3&SID=5ec6ff9b76f905169e9da83c90bb2586

anonymous · Answer

The second equation needs the ^2 to denote it is squared.

anonymous · Answer

- infinity, 9?

anonymous · Answer

increasing?

anonymous · Answer

Ok it is asking anyone who clicks that to login. Do not ever give your login information to anyone ok Alyy?

anonymous · Answer

ohh ok oops

anonymous · Answer

i wont

anonymous · Answer

K so, the graph will look like this, |dw:1404623204799:dw|

anonymous · Answer

We need to know the x-intercepts and y-intercept to know where it is increasing and decreasing from. Do you know how to find the x and y-intercepts using the equation?

anonymous · Answer

yea if the graph was numbered

anonymous · Answer

Sorry, not the y-intercept, but its maximum value|dw:1404623316933:dw|