
<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:
$7.45
Step-by-step explanation:
If it's constant , divide the amount he earns by the amount of hours. It should be the same every time.
44.70 divided by 6=7.45
and so on
Answer:
all of the above
Step-by-step explanation:
Answer:
The distance
Step-by-step explanation:
because all of the other are still congruent