(-8.0,-1.0)
(-5.9,-1.0)
(-3.8000000000000007,-0.9999999229960725)
(-1.700000000000001,-0.9837904585907746)
(0.3999999999999986,0.428392355046667)
(2.4999999999999982,0.999593047982555)
(4.599999999999998,0.999999999922504)
(6.6999999999999975,1.0)
(8.799999999999997,1.0)