What Is the Slope of the Inverse of f(x)?

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The slope of the inverse function f^-1(x) for f(x) = (-5/7)x - 3 is indeed -7/5. This conclusion can be verified by graphing the function and observing its reflection over the line f(x) = x. The constant term -3 does not affect the slope of the inverse. The discussion confirms that understanding the relationship between a function and its inverse is key to determining slopes. Overall, the slope of the inverse function is accurately identified as -7/5.
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:smile: My question says f(x)=(-5/7)x-3 determine the slope of f^-1(x) without finding the inverse. I think the answer is the slope of f^-1(x)=(-7/5)x
Is this correct?
 
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Yes. It is correct. Once again, you can check this by graphing the function and seeing the reflection over f(x) = x
 
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I actually had the same question, where did the -3 go?
 
MaryB, the -3 has nothing to do with the slope.
 
The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

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