calcxulus1

Find the critical points of the function. (Enter your answers as a comma-separated list.)
g(x) = square root(81 − x^2)

1. 👍
2. 👎
3. 👁
1. y = (81-x^2)^.5

y' = .5(81-x^2)^-.5 (-2x)
= -x/sqrt(81-x^2)
what is denomination when x = -9
what is denominator when x=+9

1. 👍
2. 👎

Similar Questions

1. Pre-Calculus

f(x) = cos(x) on the interval [−2π, 2π] (a) Find the x-intercepts of the graph of y = f(x). (Enter your answers as a comma-separated list.) (b) Find the y-intercepts of the graph of y = f(x). (Enter your answers as a

2. Calculus

Find the value(s) of c guaranteed by the Mean Value Theorem for Integrals for the function over the given interval. (Enter your answers as a comma-separated list.) f(x) = x^4, [0, 4]

3. Calculus

Find the number c that satisfies the conclusion of the Mean Value Theorem on the given interval. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f(x) = √x , [0, 25]

4. Calculus 1

Find the number c that satisfies the conclusion of the Mean Value Theorem on the given interval. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f(x) = sqrt(x), [0,16]

1. Calculus 1

Consider the following. B(x) = 3x^(2/3) − x (a) Find the interval of increase.(Enter your answer using interval notation.) Find the interval of decrease. (Enter your answer using interval notation.) (b) Find the local maximum

2. maths

Use a graphing utility to approximate the solutions of the equation in the interval [0, 2Ï€). (Round your answers to three decimal places. Enter your answers as a comma-separated list.) 6 sin(x) + 3 cos(x) = 0

3. Calculus

Find the zeros of the function algebraically. (Enter your answers as a comma-separated list.) f(x) = 2x2 − 3x − 20 x =

4. Math

The graph of f is shown. Apply Rolle's Theorem and find all values of c such that f '(c) = 0 at some point between the labeled intercepts. (Enter your answers as a comma-separated list.) f (x) = sin(2x)

1. Math

The graph of f is shown. Apply Rolle's Theorem and find all values of c such that f '(c) = 0 at some point between the labeled intercepts. (Enter your answers as a comma-separated list.) f (x) = x^2 + 6x − 7

2. Calculus (increasing/decreasing)

Find the interval(s) where the function is increasing and the interval(s) where it is decreasing. (Enter your answers using interval notation. If the answer cannot be expressed as an interval, enter EMPTY or ∅.) f(x) = (5 −

3. calculus 1

Find the critical numbers of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f(x) = 4x3 + x2 + 4x

4. pre cal

Find the zeros of the function algebraically. (Enter your answers as a comma-separated list.) f(x) = 3x + 18