Aline that is perpendicular to y=-2/7x+9y and that passes through the point (4, -6)

Find Slope :

y = -2/7x + 9
Slope = -2/7
Perpendicular slope= 7/2


Find y - intercept :

y = mx + b
y = 7/2 x + b
At (4, -6)
-6 = 7/2 (4) + b
-6 = 14 + b
b = -6 - 14
b = -20


Form equation :

y = mx + b
y = 7/2 x - 20
2y = 7x - 40


2y = 7x - 40

You must find the surface of the block therefore 98187 dived by 5628 = 583m squared