Write the equation of a line that is perpendicular to the line 2y+ x=4 and that passes through the point (2, 1)

+25 = x

step-by-step explanation:

here x is the hypotenuse of a right triangle whose legs are 7 and 24.   by the pythagorean theorem, 7² + 24² must equal x²:

x² = 49 + 576 = 625.   thus, x = +√625 = +25 = x

true? is that what you're asking or do you mean something else?