 Turn in pg 58  Signed Sheet  Quiz Friday, 2.1, 2.2, 2.4  Check Website if you are gone.

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Presentation transcript:

 Turn in pg 58  Signed Sheet  Quiz Friday, 2.1, 2.2, 2.4  Check Website if you are gone

Little by little, one travels far. J. R. R. Tolkien

 Inverse in the real world: If I drive away from my house 98 miles the INVERSE operation would be: to drive back to my house 98 miles. Start end  It’s a mathematical operation that causes the reverse effect of what the original mathematical operation was doing

 Name the inverse operation of: Addition by 9  Subtraction by 9 Subtraction by the variable j  Addition by the variable j Multiplication by 8  Division by 8 Division by the variable k  Multiplication by the variable k Apply each situation to 30… what do you get?

 Lets check out an inverse machine:  Start with 5 Subtract 2 Multiply by 7  Lets reverse it using inverses  The last thing you do in your operations you must reverse that first

 Start with 21 and get 5 back with two operations. Divide by 7 Add 2 We get 5 back  What if we added 2 first then divided by 7? 21+2=23

 Pg , 8-10, 11, 13, 15