-10 -5 5 10 --5- -10 Find the area of a rectangle with vertices T(3, 2) R (3, 5) s(7,5) Q (7, 2)

Explain the determine red

Again Find the parabola that gives the best least squares approximation to the points. Please solve this problem as fast as possible please. Do not pay attention to the selected option, I am just trying myself at linear algebra :)

3 Find the least squares cubic equation that best fits the points: (-2,-2), (-1, 1), (0, 1), (1, 2), (2, 2).

Find the points on the surface — ху + 100 that are closest to the origin. 1. (-4, –9, –8), (4, 9, 8) 2. (–10, 10, 0), (10, –10, 0) 3. (-2, 18, –8), (2, –18, 8) 4. (4, –9, 8), (-4, 9, –8) 5. (0, 0, –10), (0, 0, 10) -