Suppose point A is located at (1, 3) on a coordinate plane. If AB is 10 and the x-coordinate of point B is 9, explain how to use the Distanc

Question

Suppose point A is located at (1, 3) on a coordinate plane. If AB is 10 and the x-coordinate of point B is 9, explain how to use the Distance Formula to find the y-coordinate of point B.

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Bình An 3 years 2021-08-31T03:09:28+00:00 1 Answers 268 views 0

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  1. Eirian
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    2021-08-31T03:10:59+00:00
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    Answer:

    y =9

    Step-by-step explanation:

    you know the distance is 10 and some of the x,y points. so start filling what you know into the distance formula

    10= √((9-1)^2 + (y-3)^2 )

    square both sides to get ride of the square root

    100 = 64 + (y-3)^2

    36 = (y-3)^2

    6 = y-3

    y = 9

    double check by using 9 for Y and you’ll see it works.

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