Solve the inequality -9.5+6x ≥ 42.1

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

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)