Solve for z i am not sure need answer asap

In Triangle ABD using Pythagoras theorem we can write

Now In Triangle BCD Using Pythagoras theorem we get

Now in larger Triangle ABC using Pythagoras theorem we can write

Now substitute the values from above two equations we get

y-y1=4(x-x1)

step-by-step explanation:

this is point-slope form since you only have 4 as the slope it goes in place of m

hope this : )

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step-by-step explanation: