What is the x-intercept and vertex of: y=-x^2-14x-49

y-int = - 49 vertex = 7

explanation:

a b c

y = x^2 - 14x - 49

formula to find the vertex:

-b / 2a

= - (-14) / 2 (1)

= 14 / 2

= 7

the y-intercept is c

in this equation c is - 49, which means the y-int is - 49.