Astudent made in finding the interval(s)
over which the function is positive and
negative.
positive: (-1,31
negative: (- 0,-1) and (3, 0)

Positive:  

Negative:

Step-by-step explanation:

The graph represents a parabola that has a maximum vertex at (1,4).

The portion of the graph above the x-axis is considered positive

For , the function is positive.

We can write this in interval notation as:

For or , the function is negative.

We can write this in interval notation as:

there should be an link icon on the bottom of the text box you get. it looks like a paperclip!