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Envy_Seven

  • one year ago

I have an Algebra exam tomorrow. Can anyone just help me revise some of the basics?

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  1. Clalgee
    • one year ago
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    Algebra I I suspect? :)

  2. Envy_Seven
    • one year ago
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    Yes

  3. Clalgee
    • one year ago
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    Alright then! Let's do this :) Give me 30 seconds.

  4. Envy_Seven
    • one year ago
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    Thanks! :)

  5. Clalgee
    • one year ago
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    No problem. So I'm going to mix it up. I will ask you for definitions, formulas, and I'll need you to simplify a few equations okay?

  6. Envy_Seven
    • one year ago
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    Aight

  7. Clalgee
    • one year ago
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    Alright, Let's start with Order of Operations. Explain the steps of PEMDAS. Then solve the equation using Order of Operations below.

  8. Clalgee
    • one year ago
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    -2[3 -(-2)(6)]= ?

  9. Envy_Seven
    • one year ago
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    P = Parentheses E = Exponents? M = Multiplication D = Division A = Addition S = Subtraction

  10. Envy_Seven
    • one year ago
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    34?

  11. Envy_Seven
    • one year ago
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    Wait actually...

  12. Clalgee
    • one year ago
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    Great! You've mastered the understanding of PEMDAS But as for solving the equations.... You took a different route there

  13. Clalgee
    • one year ago
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    1.) Parenthesis in PEMDAS Multiply (-2)(6)= ?

  14. Envy_Seven
    • one year ago
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    -12

  15. Envy_Seven
    • one year ago
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    -12 - 3 = 15 because of double negative?

  16. Envy_Seven
    • one year ago
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    3 - (-12) is how it should be written actually, right?

  17. Clalgee
    • one year ago
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    2.) There are no exponents so we move multiplication. Multiply -12 by _____ ? What do you think?

  18. Clalgee
    • one year ago
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    You got it :)

  19. Envy_Seven
    • one year ago
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    then -2 x 15 is -30?

  20. Clalgee
    • one year ago
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    You got it again!

  21. Clalgee
    • one year ago
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    Where did you get 34 from though?

  22. Envy_Seven
    • one year ago
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    -2[3 -(-2)(6)]= ? I did 3 - (-2) first for some reason

  23. Clalgee
    • one year ago
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    Oh alright! That's fine, but just as long you knew what mistake you made :) So now, I'm going to ask you for definitions.

  24. Clalgee
    • one year ago
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    What is absolute value? Give me an example.

  25. Envy_Seven
    • one year ago
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    The number between 0 and (for example, 5)?

  26. Envy_Seven
    • one year ago
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    And if it was -7, the absolute value would be 7?

  27. Envy_Seven
    • one year ago
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    So an example would be: 10 is the absolute value of 10 and -10

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