Answer:
Step-by-step explanation:
y = ax² + bx + c
Plug the points into the equation to get a system of 3 equations with 3 unknowns a, b, and c.
-27 = 4a - 2b + c
-42 = 9a + 3b + c
-12 = a + b + c
(a,b,c) = (-4,1,-9)
y = -4x² + x - 9
You factor the numerator and denominator and cancel the common factors. So maybe that should help you
Answer: multiply the number of pounds by 16 to get number of ounces (since there isn't a number in between weighs/pounds)
