1. (15 points) Suppose A is the matrix 0 1 2 2
0 3 8 7
0 0 4 2
(a) Find the general solution to Ax = 0 and describe Nul A.
(b) Describe the column space of this particular matrix A. “All combinations of the
four columns" is not a sufficient answer.
(c) Let R be the reduced row echelon form of A. What is the reduced row echelon form
of B when B is the 6 x 8 partitioned matrix B = using the same A? You
can express the solution in terms of R.

i do not know this sorry : (

< 4, -5>

step-by-step explanation:

starting from g. we move 4 right and then 5 down to get to h. that means the vector is < 4, -5>

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation:

step-by-step explanation:

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