Lucia está remodelando su habitación. para ello, pintará las paredes de verde, rosado o amarillo, la puerta , café o blanca y colgará una copia de un cuadro de picasso o dali ¿de cuántas maneras diferentes puede remodelar su habitación realizando todos los cambios?

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.

slope =   (y2 -y1) ÷ (x2 -x1)

slope = (0 -0) / (-5, -7)

slope = 0 / -12 = 0

the slope of the line is zero.   it is perfectly horizontal.

step-by-step explanation: