This is the only number which is neither positive or negative?

Which quadratic function best fits this data? x y 1 32 2 78 3 178 4 326 5 390 6 337 a. y=11.41x2+154.42x−143.9 b. y=−11.41x2+154.42x−143.9 c. y=11.41x2+154.42x+143.9 d. y=−11.41x2+154.42x+143.9

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

If a baby uses 15 diapers in 2 days how many diapers will the baby use in a year