The vertex of this parabola is at (-2,-3). When the x-value is -1, the y-value is -5. What is the coefficient of the squared expression in the parabola’s equation? A. 8 B. -8 C. -2 D. 2

Option C is correct

Step-by-step explanation:

Given: vertex of this parabola is at (-2,-3)

To find: coefficient of the squared expression in the parabola’s equation if the x-value is -1, the y-value is -5

Solution:

The equation of parabola is of the form

Here, a is the coefficient of the squared expression in the parabola’s equation.

Put

So, the coefficient of the squared expression in the parabola’s equation is

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7