Math (Check)

posted by .

The equation y = a^x is a decreasing function a =
1) 1
2) 2
3) -3
4) .25

I think that the correct answer is 3) -3...but I am not sure why? Can anyone please check if I am right and explain why? Please....Thank you for your help!!!

  • Math (Check) -

    In y = ax^2 , the parabola opens upwards for a positive value of a
    and it opens downwards for a negative value of a

    so have confidence in your answer since ...

  • Math (Check) -

    Thanks for your help!!! :)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math

    For homework we're supposed to give all the properties of different functions. I was able to do all of it except for this one greatest integer function - f(x) = -1/2 [x-1] These functions always mess me up! Could someone tell me the …
  2. Health care please check answer

    Please check my answer thank you Verifying the accuracy of HCPCS codes is an important function in what ?
  3. calculus

    is the function f(x)=x^2 increasing on decreasing at x = -1. can anyone please check my reasoning: the value of the derivative of the function at x=-1 is -2, so that means the slope of the tangent line to the graph at that is a negative …
  4. Algebra-Please check my calculations

    Could you please check my answers and help with the ones I can't figure out- 1. Solution to the radical function sqrt(1/2x+1) = 1 is x = 0 True or False I think it is true according to my calculations 2.Solve x = sqrt(8x) 8x = x^2 …
  5. Algebra

    I have two short questions which I think I know the answer-could you please check?
  6. Algebra-Mathmate or Reiny or Dr. Bob, please check

    I have two short questions which I think I know the answer-could you please check?
  7. Calculus

    Determine whether or not each of the following functions is invertible. Give your reasons for believing the function is invertible or not. Please check this for me. I am not sure if I am adequately explaining my answer and if my answer …
  8. Math: Homework Check!

    Can you check to see if my answers are correct. If wrong please explain why. 1. 3 ft = 36 L - S x (largest to smallest) THINK: 1 ft = 12 in 2. 72 in = 2 yd THINK: 36 in = 1 yd S - L / (/ means divide) 3. 93 ft. = 31 yd THINK: 3 ft …
  9. calculus-answer check

    Determine the slope of the tangent line to the curve y=(x^2+3x)(x^2-2) at x=-1. I got 3 as my answer although I am not too sure that it's correct. I found the derivative of the function and then substituted -1 into the equation.
  10. Earth Science - Please Check My Answer

    Please help me with the following question: Please select the word from the list that best fits the definition Creates clouds, snow, sleet, rain and hail A. Radiation B. Conduction C. Convection D. Water Cycle I think the answer is …

More Similar Questions