Find k such that the line is tangent to the graph of the function
don't know how to do this one
I think it wants all values of x where it would be tangent. It must have to do with the derivative because that's the chapter im on. I just don't know what to do with it.
well the deriv = 2x - k
Am I suppose to set that equal to the slope perhaps?? but when I do I get something like 2x-4... what to do with that?