Answer:
I.
A is a 4 x 5 matrix => A: U -> V, dim U = 5, dim V = 4
Null space is exactly two dimensional plane
dim null (A) = 2
II.
Rank A = dim U - dim Null A = 5 - 2 = 3
III.
Number of linearly Independent columns of A is the rank of A = 3
IV.
Yes, The system Ax = b has no solution sometimes as range of A \neq V
V.
Yes,Sometimes Ax = b has a unique solution
VI.
Yes, sometimes Ax = b has infinitely many solutions
Answer: y - 2 = 2(x + 7)
Step-by-step explanation:
Point-slope form is written as y - 
= m(x - 
) where m is the slope and ( , ) are points on the line.
y - = m(x - )
y - 2 = 2(x + 7)
It would be E.
Pretty simple
