If the -4 is NOT under the radical sign the graph would move DOWN four units on the y axis.
If the -4 is under the radical sign the graph would move 4 units to the RIGHT on the x-axis.
The equation is 800=12x
Divide each side by 12
So the answer is 66.66...repeating which is about 67 word per minute
I think it’s the second one because The formula would be
x=
2a
−b±
b
2
−4ac
Cost divided by number of items equals each items cost
20/16= 1.25
$1.25