A scale factor of 3 was applied to this figure. What would be the new length of the height and width of the triangle?

height: 9 units

width: 9 units

Step-by-step explanation:

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

i believe its the last graph