Recent content by kendalgenevieve

  1. K

    MHB Derivatives and relative max's and min's

    f(x)=x^3-12x^2+15x+16 Use the first derivative to find relative maximums, minimums, or neither. I am trying to find x to plug it back into f(x) to get my y value, but I am not sure if I am getting the correct x value. I did the first derivative and got 3x^2-24x+15. I then set it equal to 0 and...
  2. K

    MHB Difference Quotient of f(x)=1/(x-3)

    Simply and find the difference quotient for f(x)= 1/(x-3) I know the difference quotient formula is f(x+h)-f(x)/h but when I try solving it I keep getting it wrong.
  3. K

    MHB Determine if a function is continuous

    I just got -4 so no it does not equal 4
  4. K

    MHB Determine if a function is continuous

    $$f(x)=\begin{cases}\dfrac{x^2-4}{x+2}, & x\ne-2 \\[3pt] 4, & x=-2 \\ \end{cases}$$ Determine if its continuous at x=-2
  5. K

    MHB Lim x approaches -3 of (x^2+6x+9)/(x-3)

    When I solved it I got a 0/-6 so would the limit be just zero?
  6. K

    MHB Lim x approaches -3 of (x^2+6x+9)/(x-3)

    Determine the limit, if it exists. If not, explain why it does not exist. lim x approaches -3 of (x^2+6x+9)/(x-3)