Informal Geometry Period 1

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Essential Question
What are the important concepts to remember in
this unit?
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REVIEW!!!
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1. Are and inverses?

a) Yes
c) IDK
b) No
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2. What is the order?
a) 4x2
c) 8
b) 2x4
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3. Can you do this? Why or why not?
a) Yes, you can add matrices
b) Yes, middle s same
c) No, orders are different
d) No, you cant add matrices
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Multiply.
c)
a)
d)
b)
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5. Find x and y
a) x2, y5/4
c) x8, y5/4
c) x8, y7/4
b) x2, y7/4
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6. Solve.
a)
c)
b)
d)
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7. Solve AXB.
a)
b)
c)
d)
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8. Find the determinant.
a) 51
c) -33
d) -540
b) 21
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9. Find the determinant
a) 102
c) 34
d) -22
b) -102
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10. Solve for x and y
a)
c)
b)
d)
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11. Find A-1
a)
c)
b)
d)
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12. Are (-3,-5)(6,1) and (10,2) collinear?
c) IDK
a) Yes
b) No
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13. Find the area of the region (-1,3)(5,2) and
(9,4)
c) -8
a) 8
b) 16
d) -16
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Homework

• Review Sheet

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Assessment

• List 3 things from chapter you know you are best
  at.