Suppose that the cost of drilling x feet for an oil well is c=f(x) dollars. a) what are the units of f'(x)? b) in practical terms, what does f'(x) mean in this case? c) what can you say about the sign of f'(x)? d)estimate the cost of drilling an additional foot, starting at a depth of 300 ft, given that f'(300)=1000.

Which of the following describes the graph of y--4x-36 compared to the parent square root function? stretched by a factor of 2, reflected over the x-axis, and translated 9 units right stretched by a factor of 2, reflected over the x-axis, and translated 9 units left stretched by a factor of 2, reflected over the y-axis, and translated 9 units right stretched by a factor of 2, reflected over the y-axis, and translated 9 units left save and exit next submit