Question

draw the graph of polynomial f (x) =-3x2 +2x - 1​

Answer 1

Answer:

Step-by-step explanation:

f(x) = ax² + bx + c

Because coefficient "a" is negative, branches of parabola are going downward

"x" coordinate of vertex is - $\frac{b}{2a}$  

x = $\frac{1}{3}$  is axis of symmetry.

y = - 3 × ($\frac{1}{3}$)² + 2 × $\frac{1}{3}$ - 1 = - $\frac{1}{3}$ + $\frac{2}{3}$ - 1 = - $\frac{2}{3}$