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krissywatts

  • 3 years ago

passing through (4,-2) and perpendicular to x=5/4y-2. Write in slope intercept form. For my answer i have y=-4/5x+6/5 is this correct?

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  1. krissywatts
    • 3 years ago
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    @jim_thompson5910

  2. jim_thompson5910
    • 3 years ago
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    x=5/4y-2 x+2=5/4y 5/4y = x+2 y = 4/5x + 2(4/5) y = 4/5x + 8/5

  3. jim_thompson5910
    • 3 years ago
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    the slope of y = 4/5x + 8/5 is 4/5 so the slope of x=5/4y-2 is also 4/5

  4. jim_thompson5910
    • 3 years ago
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    the perpendicular slope would be -5/4 because you flip the fraction and the sign of 4/5

  5. jim_thompson5910
    • 3 years ago
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    so your answer will have a slope of -5/4 not -4/5

  6. krissywatts
    • 3 years ago
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    the original slope was 5/4 not 4/5

  7. jim_thompson5910
    • 3 years ago
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    you first need to solve for y to get the slope

  8. jim_thompson5910
    • 3 years ago
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    5/4 is not the original slope

  9. krissywatts
    • 3 years ago
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    soo it would then be -4/5 for perp wouldn't it?

  10. jim_thompson5910
    • 3 years ago
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    -5/4 for the perp

  11. jim_thompson5910
    • 3 years ago
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    4/5 is the original slope

  12. krissywatts
    • 3 years ago
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    okay

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