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anonymous

  • one year ago

Write an equation of a line perpendicular to y =1/4 x + 4 in slope-intercept form that passes through the point (-2, 6).

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  1. MrNood
    • one year ago
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    from the equation y=1/4 x +4 what is the slope of that line? (hint: In the form y=mx+b : m is the slope)

  2. anonymous
    • one year ago
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    the slope is 1/4 so the new slope would be -4

  3. anonymous
    • one year ago
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    im having trouble on how to find the b of the new equation

  4. anonymous
    • one year ago
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    @MrNood do you know how to do that ?

  5. MrNood
    • one year ago
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    ok so you have the new slope so the equation of th enew line would be y = -4x + b but you know that the point (-2,6) lies on the line so when x=-2 y= 6 so put those 2 numbers in the equation = and you will find b

  6. anonymous
    • one year ago
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    okay so 6 = -4 * -2 + b 6 = 8 + b b = -2 Is that right @MrNood

  7. MrNood
    • one year ago
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    check it by putting it back into the equation .... (it looks right to me...)

  8. anonymous
    • one year ago
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    so the final answer would be y = -4 x - 2 right?

  9. MrNood
    • one year ago
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    |dw:1439500220302:dw|

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