The vertex of this parabola is at (-5, -2). when the x-value is -4, the y-value is 2. what is the coefficient of the squared expression in the parabola's equation?

The coefficient of the squared expression in the parabola's equation is 4.

Solution:

Given data:

Vertex of the parabola = (–5, –2), x = –4, y = 2

Vertex = (h, k)

Therefore, h = –5 and k = –2

Verex form of the parabola is – – – – (1)

Substitute the value of x, y, h and k in equation in (1).

⇒

⇒

⇒

Substitute a = 4 in equation (1), we get

Hence the coefficient of the squared expression in the parabola's equation is 4.

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed