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.

Hi there!

The correct answer to this question is: the vertex is at: (-7,0) and the y intercept is at (0, -49)

Step-by-step explanation:

the definition of y - intercept means when x equals zero what is y and in this case, when x = 0, y= -49

vertex is the point where the parabola crosses its axis of symmetry

answer: sensy

step-by-step explanation:

-3.5 degrees per hour

step-by-step explanation:

find the unit rate:

-12   1/4 degrees           12.25 degrees

= - = -3.5 degrees per hour

      3   1/2 hours               3.5 hours