At what rate is this function increasing?

In summary, the rate at which a function increases refers to the slope of the function at a specific point, which can be positive or negative. To calculate the rate of increase, use the formula (change in y)/(change in x). The unit of measurement for the rate of increase depends on the units of the x and y axes. A function can have a constant rate of increase if the slope remains the same at every point, but most functions have varying rates of increase. The rate of increase can vary greatly for different types of functions, such as linear, exponential, and logarithmic, each with their own unique behavior.
  • #1
IntegrateMe
217
1
When x = 16,the rate at which [tex]\sqrt x[/tex] is increasing is [tex]\frac {1}{k}[/tex] times the rate at which x is increasing. What is the value of k?
 
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  • #2
I thought it would be 4 but the answer is 8.
 
  • #3
Its the ratio of the derivatives evaluated at x=16,

(2 sqrt(x))^-1
 

Related to At what rate is this function increasing?

What does it mean for a function to increase at a certain rate?

When we talk about the rate at which a function is increasing, we are referring to the slope of the function at a specific point. This slope can be positive, indicating a positive increase, or negative, indicating a decrease.

How do you calculate the rate of increase for a function?

The rate of increase for a function can be calculated by finding the slope of the function at a specific point. This can be done using the formula (change in y)/(change in x), also known as the rise over run.

What is the unit of measurement for the rate of increase?

The unit of measurement for the rate of increase depends on the units of the x and y axes. For example, if the x axis represents time in hours and the y axis represents distance in miles, the rate of increase would be expressed as miles per hour.

Can a function have a constant rate of increase?

Yes, a function can have a constant rate of increase if the slope remains the same at every point. This would result in a straight line on a graph. However, most functions have varying rates of increase at different points.

How does the rate of increase change for different types of functions?

The rate of increase can vary greatly for different types of functions. For linear functions, the rate of increase remains constant. For exponential functions, the rate of increase grows larger and larger as the input increases. For logarithmic functions, the rate of increase decreases as the input increases. Each type of function has its own unique rate of increase behavior.

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