You can do one question also

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

Nine more than four times a number is the same as one less than twice the number. find the number?

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.