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11 votes
Answers for the 3 boxes please ​

Answers for the 3 boxes please ​-example-1

2 Answers

8 votes

Answer:

-1/7

Explanation:

7 votes
In order for two lines to be perpendicular, their gradients must multiply together to get -1

7*b=-1

7b=-1

Divide both sides by 7

So, the gradient of line b is -1/7
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User Gabriel Kaffka
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