Consider the graph of the quadratic function y = –2(x + 2)2 – 1 with no real zeros. what number can be added to the right side of the equation to change it to a function with one real root?

The number is +1

Step-by-step explanation:

we have

This is the equation of a vertical parabola with vertex at point (-2,-1)

The function has no real zeros

we know that

If the number +1 is added to the equation on the right side

then

------->

Is a translation one unit up

The vertex of the parabola will be the point (-2,0) and the function will have one real root

see the attached figure to better understand the problem

y=mx+

step-by-step explanation:

divide, then simplify your answer.

1. make -15.66 ÷   5.8 a fraction. then divide.

2. simplify.  

3. final answer.