Question

The coordinate of Point A on a number line is 3. Find the coordinates of points on the same number line which are 7 units away from A. *

5 , 10

4 , 10

5 , -10

-4 , 10​

Answer 1

Answer:

5,10 is ur answer

hope it helps!!

Answer 2

The answer is -4 , 10

Explanation step by step =>

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Co-ordinate of point A is 3

Let B , having Co-ordinate (x) , be the point on the left

side of A at a distance of 7 from A

3 > (x) d( A ,B)= 7

7 = 3 -(x) (x) = 3 - 7 (x) = -4

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Let C having Co-ordinate y , be the point on the right side of A at a distance of 7 from A

(y) > 3 d(A ,C)= 7

7 = (y) -3 (y)= 7 + 3 (y) = 10

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Therefore Co-ordinates are -4 and 10