Find the derivative of f(x) = 7 divided by x at x = 1.

Step-by-step explanation:

f(x)=\frac{7}{x}=7x^{-1}

f'(x)=7(-1)x^{-2}=-\frac{7}{x^2}

f'(1)=-7/1=-7

given : the shape of his satellite can be modeled by   where x and y are modeled in inches.

now,the given equation   is a equation of parabola.

here, coefficient of x is positive, hence the parabola opens rightwards.

on comparing this equation with standard equation , we get

in standard equation, coordinates of focus=(0,m)

thus for given equation coordinates of focus=(0,1.5)

step-by-step explanation:

yes, whats the problem?