How do you find the denominator and the numerator on a word problem

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

A. plot the data for the functions f(x) and g(x) on a grid and connect the points. x -2 -1 0 1 2 f(x) 1/9 1/3 1 3 9 x -2 -1 0 1 2 g(x) -4 -2 0 2 4 b. which function could be described as exponential and which as linear? explain. c. if the functions continue with the same pattern, will the function values ever be equal? if so, give estimates for the value of x that will make the function values equals. if not, explain why the function values will never be equal.