Question

Using the completing-the-square method, find the vertex of the function f(x) = 5x2 + 10x + 8 and indicate whether it is a minimum or a maximum and at what point.

a) maximum (1,8)
b) minimum (1,8)
c) maximum (-1,3)
d) minimum (-1,3)

Answer 1

its a minimum I think

Answer 2

i am here

Answer 3

its minima

Answer 4

B

Answer 5

minima at (-1,3)

Answer 6

D, 100% sure

Answer 7

thanks

Answer 8

My pleasure