Answer:
it should be 23 feet long
Step-by-step explanation:
Y = 1/4x - 1....the slope here is 1/4....but for a perpendicular line we need a negative reciprocal slope...all that means is " flip " the slope and change the sign. 1/4....flip it....4/1.....change the sign....-4/1 or just -4. So our perpendicular line will have a slope of -4. The only one in ur answer choices with a slope of -4 is D.....so ur answer has to be D.
perimeter = sum of all sides
27 = 9+7.8+x
x (third side) = 10.2
Because you have to connect the other two sides , so a diagonal line will be longer than a vertical line
