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The line through the points (-2,a) and (9,3) has slope -1/2.find the value of apls send a pic of the working guys asap​

Answer»

ANSWER:

HOPE it will help you

Step-by-step explanation:

SLOPE (m) = y₂-y₁ ÷ x₂ - x₁

         -1÷2=3-a ÷ 9+1

          -1÷2 = 3-a ÷10

 Do CROSS multipy

-10 = 6-2a

2a = 6+10

2a = 16

a = 16÷2

a= 8

Therefore, a= 8



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