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  1. BioHazard9064
    • one year ago
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    The equation below represents Function A and the graph represents Function B: Function A f(x) = -2x + 1 Function B graph of line going through ordered pairs negative 1, negative 5 and 2, 1 and 3, 3 Which equation best compares the slopes of the two functions? Slope of Function B = 2 × Slope of Function A. Slope of Function A = Slope of Function B Slope of Function A = 2 × Slope of Function B Slope of Function B = - Slope of Function A

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  2. anonymous
    • one year ago
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    Find the slope of the second one with \[\large \bf m~=~\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\]

  3. BioHazard9064
    • one year ago
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    How would I do that?

  4. anonymous
    • one year ago
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    Choose two sets of coordinates. For example, (2,1) and (3,3). \[\large \bf (2,1)~=~(x_{1},y_{1})\]\[\large \bf (3,3)~=~(x_{2},y_{2})\] Now plug them into the formula \[\large \bf m~=~\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\]

  5. BioHazard9064
    • one year ago
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    how ?sorry Im really bad I missed this in school thats why I got to do it now

  6. anonymous
    • one year ago
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    What is \(\large \bf x_{1}\) ?

  7. BioHazard9064
    • one year ago
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    2?

  8. anonymous
    • one year ago
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    Yeah. So what would the others be?

  9. BioHazard9064
    • one year ago
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    y1 would be 1 x2 whould be 3 and y2 yould be 3?

  10. anonymous
    • one year ago
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    Correct. Now can you plug those points into the formula now? \[\large \bf m~=~\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\]

  11. BioHazard9064
    • one year ago
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    3 - 1 m=-------------- 3 - 2

  12. anonymous
    • one year ago
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    Correct. Which would simplify to?

  13. BioHazard9064
    • one year ago
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    2,1?

  14. anonymous
    • one year ago
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    \[\large \bf m~=~\frac{2}{1}~=~2\]

  15. BioHazard9064
    • one year ago
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    ok

  16. BioHazard9064
    • one year ago
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    I get that part now

  17. anonymous
    • one year ago
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    So the slope of Function A is -2 and the slope of Function B is 2. So which of the answer choices would make sense?

  18. BioHazard9064
    • one year ago
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    A

  19. anonymous
    • one year ago
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    \[\bf Slope~of~function~A~=~-2\]\[ \bf Slope~of~function~B~=~2\] So answer choice A is saying \[\large \bf 2~=~-2 \times 2\] Does that sound right?

  20. BioHazard9064
    • one year ago
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    No

  21. anonymous
    • one year ago
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    So answer choice A can't possibly be correct. Now then, it has to be B, C or D.

  22. BioHazard9064
    • one year ago
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    B is out cause they aren't equal

  23. anonymous
    • one year ago
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    Yep.

  24. BioHazard9064
    • one year ago
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    So then D looks the best because its saying B = - A

  25. anonymous
    • one year ago
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    Correct :)

  26. BioHazard9064
    • one year ago
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    thanks for showing me how to do it instead of just the answer

  27. anonymous
    • one year ago
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    \[\huge \color{aqua}N\color{fuchsia}o \space \color{lime}P \color{orange}r \color{blue}o \color{maroon}b \color{red}l \color{olive}e \color{purple}m \ddot\smile \]

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