Answer: 3hk - 12.4h
Step-by-step explanation:
h(3k-12.4)
h multiplied by 3k results in 3hk, and h multiplied by 12.4 gives -12.4h.
So, the outcome is 3hk - 12.4h
From -∞ to -4 the blue line is situated above the X axis, indicating that it is >0
Between -4 and -3, the blue line is below zero
Thus, the correct answer is: F(x) > 0 over the interval (-∞,-4)
