The graph of the function f(x)=-(x+3)(x-1) is shown below. which is true about the domain and range of the function

we have

Convert into vertex form

Group terms that contain the same variable, and move the constant to the opposite side of the equation

Complete the square. Remember to balance the equation by adding the same constants to each side

Rewrite as perfect squares

-------> equation in vertex form

This is the equation of a vertical parabola open down

The vertex is a maximum--------->

therefore

the domain of the function is the interval---------> (-∞,∞)

Domain is all real numbers

The range of the function is the interval --------> (-∞,4]

Range is all real number less than or equal to

Using a graphing tool

see the attached figure to better understand the problem

2 and 1.

step-by-step explanation:

plug in each answer. 0 doesn't work, 1 does. so does 2. 4 doesn't:

0 = 1 is not true.

2 = 2 is true.

4 = 4 is true.

8 = 16 is not true.

hope this !