Solveforx,y,andzeitherbyreducingtheaugmented
coefficientmatrixtoEchelonthenusingbacksubstitutionorby
reducingittoReducedEchelonform.
2 y 4z 2
x y 1
2 x 2 y 7 z 12
A.
B.
C.
D.
x=4,y=5,z=2
x=1,y=1,z=2
x=0,y=1,z=2
x=2,y=1,z=1
Solveforx,y,andzeitherbyreducing

EGR 382 Diff Eq and Lin Algebra
HW No. 11 - SOLUTIONS
Due Tuesday, April 8 at 4pm [Turn into Dr. Rickards Office]
1) Sect 1.5 Prob 1 (pg 56 or pg 412)
2) Sect 1.5 Prob 5
3) Sect 1.5 Prob 17
4) Sect 1.5 Prob 33
Based on 2.4 Material:
5) For the DE: dy/dx=x

Start Here
You don't have to do this.In you
loop below, you can just put (for this
example): k=x+y
You don't have to
do this.you can
just put (for this
example): k=x+y

MATHEMATICS
STRAIGHT LINE
The general form of the equation is
Ax + By + C = 0
The standard form of the equation is
y = mx + b,
which is also known as the slope-intercept form.
The point-slope form is
y y1 = m(x x1)
Given two points: slope,
m = (y2 y1)/(x2

EGR 382 Diff Eq and Lin Algebra
HW No. 12 SOLUTIONS
Solve the following problems from your text.
Section 5.1
3*
5*
25* (explain your answer? Did you do Wronskian or a scalar multiple test?)
34* (you must show work)
38* (you must show work)
The following m