Let p = 0
1 0
and = 0
0 0

a. give an example of a 2 × 2 matrix a, not with al entries equal to zero, such that pp=
b. give an example of a 2 × 2 matrix b with pp≠
c. give an example of a 2 × 2 matrix c such that cc = for al 2 × 2 matrices
d. if a 2 × 2 matrix has the property that + = for al 2 × 2 matrices must be the zero
matrix explain.

answer: a

step-by-step explanation: the answer is a due to the rule of symmetry; that a line of symmetry must divide a figure into 2 pieces that are the exact same, only reflected over a line of symmetry. b and c do not have lines of symmetry and would not divide the figure evenly, thus making the answer a.

if y=4x then you will substitute 4x in for y in the second equation.

8x + 4x = 18 combine like terms

12x = 18 divide by 12 on both sides

x = 18/12 or 3/2

now replace x in the first equation with 3/2 to get

y = 4 3/2

y = 6

the answer is a

(3/2,6)

hope that .

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