y x2 2x 2 The graph of a quadratic function is given Dete
y = -x^2 - 2x - 2 The graph of a quadratic function is given. Determine the function\'s equation. h(x) = (x - 2)^2 + 2 j(x) = (x - 2)^2 - 2 g(x) = (x + 2)^2 - 2 f(x) = (x + 2)^2 + 2 Find the range of the function. f(x) = x^2 - 8x + 26 [4, infinity] [-infinity, 4] [10, infinity] [-infinity, 0]
Solution
Answer 14)
y= -x^2-2x-2 = -(x+1)^2 -1
Thus, the vertex is (-1, -1) and parabola will open Down.
So correct option is B
Answer 15)
From graph, The vertex is at (-2,2), and parabola opens up, hence the equation is
y= (x +2)^2 +2
So correct option is D
Answer 16)
y=x^2-8x+26
=(x-4)^2 +10
So, the range is [10, infinity)
So correct option is C
