A. if the return trip is the same then the bird traveled 40miles
b. the time of the trip is x hours + 6/x-4
4⅚ ≥ x; subtract fifty-eight from both sides, divide by -12 from both sides, and you will have your answer.
NOTE: This is where you reverse your inequality symbol [dividing or multiplying by a negative].
3x - 2y + 2 = 0 → -2y + 2 = -3x → -2y = -3x - 2 → y =
x + 1
x - y + 3 = 0 → -y + 3 = -
x → -y = -
x - 3 → y =
x + 3
These two equations have the same slope but different y-intercepts so they are parallel lines. (aka inconsistent).
Answer: Inconsistent, (0, 1), (0, 3)