Question

Which statements are true about the graph of the function f(x) = 6x – 4 + x2? Check all that apply.

Answer 1

f(x) = 6 - 4 + x
= 2 + x
= x + 2

Answer 2

A: f(x)=x²+6x-4=x²+2*3x+9-13=(x+3)²-13 is FALSE

B: Vertex is (-3,-13) TRUE

C axis of symmetry is x=-3 FALSE

D: from the vertex to +infinity graph increases TRUE

E: roots are -3-√42 / 2 and -3+√42 /2 FALSE