A teacher is assessing the correlation between the number of hours spent studying and the average score on a science test. The t
1 answer:
You might be interested in
For this case we have that by definition, the roots, or also called zeros, of the quadratic function are those values of x for which the expression is 0.
Then, we must find the roots of:
Where:
We have to:
Substituting we have:
By definition we have to:
So:
Thus, we have two roots:
Answer: