Question

Find the vertex of the following quadratic function

f (x) = -3x² + 7x + 11
a. (0.857 , 4.384)
b. (1.166 , 15.083)
c. (-2.45 , 3.18)
d. (1 , 12)

Answer 1

b is the answer I believe

Answer 2

B because it's a fraction I just divided them and got b