if the slope of the curve y=kx^4+kx^3 at x=-1 is 4, then what is the value of k?

assignment due tonight pls someone help
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If we differentiate this function to give us the slope we get 4kx³+3kx² and if we put x=-1 we get -4k+3k=-k.

So -k=4 and k=-4.

There are other ways of solving this without using calculus. Not sure which way you’re looking for.

by Top Rated User (1.2m points)

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