Answer:
-b+√b^2-4ac÷2a
Step-by-step explanation:
-2+√(1)^2-4(2)(-2)÷4
so it a long process but here Is the answer
x=1÷4+1÷4√17
x=1÷4+-1÷4√17
I have attached the graph
Parallel = has same slope
On points( 3,4) (-2,2)
(2-4)/(-2-3) = -2/-5 = 2/5 slope
Use same formula: (y2-y1)/(x2-x1)
Find the slope of the other points:
(-2,-5) and (-7,-3)
(-3-(-5))/(-7-(-2)) = 2/-5 = -2/5
(-1, 1) and (-6, -1)
(-1-1)/(-6-(-1)) = -2/-5 = 2/5
(0,0) and (2,5)
(5-0)/(2-0) = 5/2
(1,0) and (6,2)
(2-0)/(6-1) = 2/5
(3,0) and (8,2)
(2-0)/(8-3) = 2/5
Which has same slope of 2/5?
You can see :)
The answer is either A or C because in 4/5 of an hour half of the tank fills up
