Which of the following statements describe key features of the graph of f(x) = − x2 − 2x + 3? Select all that apply. A The y-intercept is (0, 3).
B The vertex is (−1, −4).
C The equation of the axis of symmetry is x = −1.
D The vertex is (−1, 4).

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2

the correct answer is a.) bc< mn 5 stars if this you : )

step-by-step explanation: