We are given the equation:
F (x) = T – 2 (x + 4)^2 --->
equation 1
Since we know that f (-8.3) = f(a) and a>0, therefore
from equation 1 we can generate that:
(x + 4)^2 = (a + 4)^2
(-8.3 + 4)^2 = (a + 4)^2
(-4.3)^2 = (a + 4)^2
(a + 4)^2 = 18.49
a + 4 = 4.3
a = 0.3
