F(x) is a quadratic equation with the x-side squared and a is positive which means that the graph of the function is a parabola facing up. The range of f(x) is given by {y|y ≥ k}, where k is the y-coordinate of the vertex.

, written in vertex form is

, where (h, k) = (-1, -11)
Therefore, range ={y|y ≥ -11}
Answer:
2.8, 8.8, and -17 respectively.
Step-by-step explanation:
We need to find roots of the equation.
Answer:
B) 30
Step-by-step explanation:
Bill saves 60 dollars a month so first you have to find out how much he saves in a year
To find that you multiply 60 by 12 since there are 12 months in a year
60*12 = 720
Tom saves 750 in a year so you have to subtract 750 by 720 to know how much more tom saves
750 - 720 = 30