Answer:
8 2/3
Step-by-step explanation:
Step-by-step explanation:
slope = 2-4/2-1 = -2
y - 2 = -2(x - 2)
y-2 = -2x +4
y = -2x + 6
Vertex- 0,4
Directrix- x=-6
This is my suggestions. There lots of graphing technology out there. I would use it to help with ur homework. ;)
Not sure about this one, please show a picture of your problem!