# Linear Algebra Question

**Question description**

NEEDED BEFORE 1 HOUR IF NOT I WILL NOT PAY

1) Consider the linear transformation Ta defined by multiplication on the left by the matrix below

A= 4 -7

-2 8

2 1

Is there a vector Ta(v) = <3,3,6>?

2)Suppose that T: IR3 --> IR2 is a linear transformation with T(e1)= <5,-1>, T(e2)= <2,3>, and T(e3)= <-2,5>. Evaluate T(<4,-1,2>) by linearity, that is: first express <4,-1,2> asa linear combination of standard basic vectors and then apply T.

3) Consider the vector u=<5,1,4> Show that the function IR3-->IR# defined by T(v)=v * u is a linear transforation and find [T]

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