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janessia

  • 2 years ago

Choose an equation in slope-intercept form for the line that passes through (-8,1) and is perpendicular to the y=2x-17. Choose one answer. a. y= -2x+1 b. y= -(1/2)x - 5 c. y= -(1/2)x - 3 d. y= -2x - 4

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  1. janessia
    • 2 years ago
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    @jazy

  2. jazy
    • 2 years ago
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    Slope of Perpendicular lines = opposite reciprocal ex: Slope of original line = a/b Slope of perpendicular line = -b/a So what would the slope be in the new line?

  3. janessia
    • 2 years ago
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    hmmm to be honest i dnt even know what that means that u put up there

  4. jazy
    • 2 years ago
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    Okay , you want a line perpendicular to y=2x-17. The slope of y=2x-17 is 2 or 2/1. Remember the Slope-Intercept form; y = mx + b where m = slope. What is the opposite reciprocal of 2/1? ex: Opposite reciprocal of a/b is -b/a

  5. jazy
    • 2 years ago
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    2/1 would change into -(1/2). So that leaves you with options b and c.

  6. janessia
    • 2 years ago
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    its -1/2

  7. janessia
    • 2 years ago
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    oh lol u said tht

  8. janessia
    • 2 years ago
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    it was c so thanks

  9. jazy
    • 2 years ago
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    yw(:

  10. janessia
    • 2 years ago
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    hay one more question if the 0 is on the bottom like 7/0 is it undefined or 0?

  11. jazy
    • 2 years ago
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    It is undefined. Remember rise/run. In this case the line doesn't "run"... It only goes straight up and down, "rises". Vertical line... Slope = undefined Horizontal line... Slope = 0

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