v

___________

proju(v) u

I know the drawing isn't great but just imagine a right triangle. I took a picture and put it as a file if that will be easier. You will need properties of the absolute value function for this. Question 2 a. Describe all possible values of and that will make the following addition table true.  For example, the table tells us that we would need . a+c=2 b. It is a geometric fact that there is a unique parabola through any three noncollinear points (points  that don’t all lie on the same line. For the set of points below, find a parabola with an equation of the  form ax^2 + bx + c that passes through the given points. Sketch the resulting parabola to check the  validity of your answer.  (0,1 ) (-1,4 ) (2,1 )

Question 3 Let u= and v = picture these two matricies as u sub 1 like u1

For some reason the sub button won’t allow me to use it inside a matrix. Show that the area A of the parallelogram determined by u and v is given by  A = |det |

Hint write u and v as and

There is three questions. Thanks for your help, if you need clarification just ask.