Answer:
PR = 10
Step-by-step explanation:
PR = 
The coordinates for P and R are (0,4) and (-6,-4) respectively.
So you plug in the values:
PR = 
PR = 
PR = 
PR = 
PR = 10
Answer:
The y intercept is (0,-1)
Step-by-step explanation:
To find the y intercept, let x = 0
y = -x^2 -6x-1
y = -0^2-6(0) -1
y = -1
The y intercept is (0,-1)
I believe it's not a function because the input (x) 4 has two outputs(y), 2 and 8.