Find the minimum or maximum value of the function y = -x– 4x - 2. Describe the domain and range of the function, and where the function is increasing and decreasing.

 How can this function have a max/min if it’s not a parabola?

When you graph this it’s a line.

the circle graph is not a function.

step-by-step explanation:

the graph of the circle is not a function.

because for a graph to be a function, each value of x must give one value of y

in the circle, the values of x for -2< x< 2 each give 2 values of y.

hence this is not a function.