Suppose the annual cost per active-duty armed service member in a certain country increased from $80,000 in 1995 to $90,000 in 2000. In 1990, there were 2 million armed service personnel and this...

## Derivative Resources

## Online Resources

When it comes to using a legitimate online resource to help with tutoring mathematics, or answering mathematical questions I use Wolfram.com. This website is very diverse and allows the user to input any mathematical equation, formula etc. With subject areas of mathematics, such as calculus, Wolfram.com has proved to be extremely beneficial, especially when working... read more

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x^2+xy^2+y^3=2cot y

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Find the equation of the secant line through the points where x has the given values, x=3 and x=5

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consider f(x)=x^2/x^2+a, a>0. Determine the effect on the graph of f if a is varied Does this mean that... A) Each y value is multiplied by a B) As a increases, the vertical tangent...

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Given f(x)= -1/x, find all c in the interval [-3, -1/2] that satisfies the Mean Value Theorem. How do you solve this problem and which is the right answer choice and why? a) c= -√3/2 b) + &...

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Let f"(x)=4x^3 -2x and let f(x) have critical values -1, 0, and 1. Determine which critical values give a relative maximum How do you figure this out and which is the right answer and why? a)...

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How do you solve this problem? Which is the right answer and why? a) f has a relative maximum at (1/3, 256/27) b) f has a point of inflection at (3,0) c) f has an intercept at (3,0) d)...

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How do you solve this problem? Which is the right answer and why? a. An absolute maximum b. An absolute minimum c. A critical point but not an extremum d. Not a critical point e...

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How do you figure out this problem. Which is the correct answer choice and why? a) relative maximum b) relative minimum c) intercept d) inflection point e) none of...

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The point (4,-1) is which of the following for the graph of f? How do you figure out this problem. Which answer choice is right and why? a) relative maximum b) relative minimum c)...

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Please explain how to figure out the problem. Which answer is correct and why? a) f is not continuous on [-1,1] b) f is not defined on the entire interval c) f is not differentiable at...

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How do you solve this and which answer choice is right and why? a) c= -3/2 b) c= 0,3 c) Rolle's Theorem does not apply as f is not continuous on [0,2] d) Rolle's Theorem does...

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How do you figure out this problem and which answer is right and why? Choices: a) [0,3] b) [-3,3] c) [-3/2,3/2] d) [-2,2] e) none of these

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Find the derivative of the function.

# Finding a derivative at a point with a TI84

This video demonstrates how to take a derivative at a point using a graphing calculator. A TI84 is used in the video, but this technique will work with most of the TI family of graphing calculators.