FIND THE VALUE OF K THAT MAKES THE FUNCTION CONTINUOUS

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Find the value of the constant k that makes the function f continuous.

When we see piecewise functions like this and our goal is to make sure it is continuous everywhere, there are two cases we want to consider separately:

1. making each individual piece continuous on its reduced domain, and
2. making the different pieces line up when our function switches between them.

If we know that each piece is a linear function regardless of the constant k, then we can forget about making sure each piece in continuous on its own domain and apply this shortcut. Here I'll show you the quick and easy way to find the value of the constant k that will make the piecewise function continuous for all real numbers.

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never understood this, but you explained it in a way, so that a toddler (me) could understand, thanks

wasdc
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Idk you but I love you so much😭 literally saving my life in calculus

porkbunsxx
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this helped me out. this guy is no joke.

Amoeba
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I know how to solve for k but I don’t understand why we set them equal and how that makes it continuous, they’re 2 diff equations so why can you set them equal and why do you plug in th 9? I know that’s what you do but I don’t understand why please help, thanks.

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