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**adepascale** Hi there everyone! Long time lurker first time poster. I'm at the end of my last class for the semester and we have this last assignment but the teacher has put it online for all of us to learn by ourselves. I am terrible learning this way so maybe someone here can help? =)

We're given a function, in this case it is f(x) = 1.4x

the problem says that it is a PDF over the interval 1 (less than or equal to) x (less than or equal to) c. It asks us to find c with a 3 decimal place value. I figured out how to do the same type of problem with the integral 0 < x < c but this stumps me, help anyone? Thanks in advance!