
<h2>
Explanation:</h2>
Remember you need to write complete questions in order to find exact answers. In this way you haven't provided any function, so I'll choose a quadratic function given by:

So we need to find the entire interval at which this function positive. Put another way:

By using graphing tool, we get the graph shown below. As you can see:
- The function decreases from

- The function increases from

- The graph of the function is a parabola that opens up.
But what is really importan in this problem is that:
- The function is positive over the interval

At this interval the function is positive, that is, 
<h2>Learn more:</h2>
Standard equation of the graph of a parabola:
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Answer:
A number is positive if it is greater than or equal to zero. A number is negative if it is less than or equal to zero.
Step-by-step explanation:
what concepts of functions can you associate with the picture
Indefinitely many solutions is the answer to this problem. All real numbers are solutions. The answer was 0=0.
Answer:
its 12
Step-by-step explanation:
you find whats closest for example, 10 squared is 100.
100 is close to 144
and 11x11= 121
so you would do 12
12x12 is 144