Question

Find the value of a, if the distance between the points A (-3 ,-14) and B (a, -5) is 9 units

Answer 1

Answer:

Step-by-step explanation:by distance formula

Answer 2

9 = √(a+3)^2+(-5+14)^2

squaring both sides

81=a^2+9+6a+81

81-81=a^2+9+6a

a^2+6a+9

a^2+3a+3a+9

a(a+3)+3(a+3)

(a+3)(a+3)

a=-3,-3

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