Posts by mkcolema

Total # Posts: 18

  1. calculus

    Thanks Damon. And to Bob and Reiny, I was not asking for answers at all, I assumed that when someone looked at the question they would explain how to do it, not give me the answer. Considering I have all the answers in the back of my book. But thanks.
  2. calculus

    9. f(x)= x sqrt(x^2+4) on interval [-5,4] What region does it concave down? What region does it concave up? Max? Min?
  3. calculus

    8. f(x)= - 2x^3 + 45x^2 -300x +9 There are 3 intervals (-inf,A], [A,B], [B, inf) where A and B are critical points. Find A and B? For each of the intervals is it decreasing or increasing??
  4. calculus

    7. f(x)= 6x^3- 9x^2- 360x - 5 What interval is it decreasing? What 2 intervals is it increasing? What is the local max?

    6. f(x)= 12x^5 + 30x^4 - 160x^3 +4 For this function there are four important intervals:(-inf, A] , [A,B] ,[B,C],[C, inf) where A ,B ,C are the critical numbers. Find A B AND C and at those points do they have a local min, max or neither??
  6. calculus

    5. f(x)= -2x^3 + 27x^2 - 108x +10 Value of x and local min? value of x and local max?
  7. calculus

    4. f(x)= 7-5x^4 What does x equal? what is the absoloute max?
  8. calculus

    f(x)= x^3/x^2-16 defined on the interval [-19,16]. Enter points, such as inflection points in ascending order, i.e. smallest x values first. Enter intervals in ascending order also. What are F(x) TWO vertical asympototes? F(x)is concave up on the region ______ to ________ and ...
  9. math

    3/4 solve for y move -4y to the other side: 4y=3x-16 Divide everything by 4: y=3/4x-4
  10. math-calc

    nevermind i got it! thanks!
  11. math-calc

    I don't understand how to get the min??
  12. math-calc

    f(x)=3-3x^2 -3 <= x <= 2 How do you find the absolute max and min value? What does x equal?
  13. math-calc

    f(x)=2x^3-36x^2+162x-6 small critical number? Large critical number?
  14. math-calc

    f(x)=(5x-4)e^2x How do you find the one critical number??
  15. math-calc

    A rectangle is inscribed with its base on the x-axis and its upper corners on the parabola y+1-x^2. What are the dimensions of such a rectangle with the greatest possible area? width? height?
  16. math-calc

    Consider the function f(x)= (2x+8)/(6x+3). For this function there are two important intervals: (-inf, A) (A, inf) and where the function is not defined at A . Find A For each of the following intervals, tell whether is increasing (type in INC) or decreasing (type in DEC). ...
  17. math-calc

    for x (-12, 10) the function f is defined: f(x)=x^7(x+2)^2 On which two intervals is the function increasing (enter intervals in ascending order)? Find the region in which the function is positive Where does the function achieve its minimum?
  18. calculus

    The function 9x+3x^-1 has one local minimum x=?? and one local maximum x=??.