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Answer:
Length of AB = 4.4721
Equation of line BC: y = -2x + 6
Step-by-step explanation:
To find the length of the line AB, we just need to find the distance between the points A and B.
We can find distance with the equation:
To find the equation of the line BC, first let's find the slope of the line AB.
This slope is given by:
The line AB is perpendicular to the line BC (because mB = 90°), so the slope of line BC is:
so the line BC is:
To find the value of b, we can use the point B (1,4):
So we have: