A track runner ran for 15 minutes, walked for 15 minutes, ran for another 20 minutes, and then stretched in place for 10 minutes
.Which graph describes the relationship between runner's total distance and time?
1 answer:
Note that:
When the track runner runs, he is expected to cover more distance than when walks
When he stretches his body, he is not expected to cover any distance because there is no motion when the body is stretched in place.
By carefully observing the graphs shown, the correct graph will be plotted in the format below:
Long distance for the first 15 minutes
Short distance for the second 15 minutes
Longer distance for the next 20 minutes
No distance covered in the last 10 minutes
Therefore, the only graph that describes the relationship between the runner's total distance and time is option B
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Answer:
Step-by-step explanation:
Completing the square is a process of converting a quadratic equation in standard form into vertex form.
The first step in completing the square is grouping the quadratic and linear terms of the quadratic equation.
Factor out the coefficient of the quadratic term,
Now complete the square, add a term to make the grouped part of the equation a complete square, then balance the equation.
Simplify,
The x-coordinate of the vertex of the equation is equal to (-1) times the numerical part of the quadratic term, and the y-coordinate is equal to the constant.