Which triangle’s unknown side length measures Start Root 53 End Root units?

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

Ineed with this problem 21 show steps

Which function in vertex form is equivalent to f(x) = x2 + 6x + 3? f(x) = (x + 3)2 + 3 f(x) = (x + 3)2 − 6 f(x) = (x + 6)2 + 3 f(x) = (x + 6)2 − 6