Calc I
posted by Kate .
Yes I was trying to find the range
y = (x^2 4)/(x^2  x 12)
ok using 2(4 +/ sqrt(15) )
sorry I forgot the minus in the derivitive but ya that makes sense but however I need three critical values that only gives me graph it and you'll see there are three how do I find the third one one

Solved
Respond to this Question
Similar Questions

Calculus
find derivitive of 1/square root of x 1/square root of x = x^(1/2) The derivative is 1/2 x^(3/2) can you keep going on the problem to not have negative exponents? 
some algebra help (radicals)
I hope I am writing this down right.. I am trying to do some practice questions to learn 10^5 (sqrt)2y  4^5 (sqrt)2y I am trying to figure out how to solve this They gave us some answers to choose from, but I am clueless on how to … 
algebra
I worked the problem out, but could you check my work over and see if it's correct? 
Calculus
Trying find the critical numbers for X^3+X^28x But i cant remember how to simplfy the derivitive of 3X^2+2X8 can someone help me? 
Calculus
Find the range of y = (3x1)/(2x^2 + x  6) I was going to take the derivative of the numerator and denomenator and then use the quotent rule to find the derivative of the function and find the critical values but I ran into the imaginary … 
algebra homework
1 minus the sqrt of x by the power of 2. I need help with the steps of solving this. I forgot how to do it. Thakns in advance. 
PreCalc
Could someone please check theseI had tried one last night but it was really wrong so I'm been workinghopefully these are correct. What are the roots of the equation and answers have to be simplified 2x^2 + 5x10 =0 2x^2 + 5x10+10=0+10 … 
calc
find derivative using limit definition: f(x) = x  sqrt(x) so f'(x) = lim h>0 [f(x+h)  f(x)]/h but I keep trying to solve by multiplying by the conjugate but I can't figure it out..there's nothing that can be cancelled or anything … 
precalc review/calc
For the curve y=2^[sqrt(9x2)], find the range of the function. I think the range is [0,8] but I don't know why. Could you show me how to get to that answer? 
math
idk if this is supposed to be common sense but, i need help understanding why when i make this equation solve for (y) that there is a plus/minus answer. (yx)yx = 2x y = .5(sqrt(2x)/2) y = .5(sqrt(2x)/2)