Answer:
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Step-by-step explanation:
-8,-4
7,0
-11/2,9/4
-5,2
-4,0
Step-by-step explanation:
diagonals of the rhombus bisect each other at right angles .
5a = 90
a = 90/5 = 18
in ∆ OCD:
5a + 2a + b = 180
7a+ b = 180
b = 180 - 7 ( 18)
b = 180 - 126
b = 54 °
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Answer: y = -3x - 1
The steps to find the equation are as follow:
1. Find the slope
2. Plug the slope into the general equation, y = mx + c
3. Find the y-intercept
4. Plug the y-intercept into the equation we created in step 2
And that will give us the equation of the line
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Find the slope
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x - 3y = 6 ←Rearrange the equation to matches the format y = mx + c
3y = x - 6 ←divide by 3 through
÷3 ÷3 ÷3
y =1/3x - 2
Sope = 1/3
Slope of the perpendicular line = - 3 (negative reciprocal)
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Plug in the value of the slope into the general equation y = mx + c
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y = mx + c
y = -3x + c
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Find the y-intercept
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y = -3x + c
At coordinate (-2, -7)
-7 = 3(-2) + c ←substitute x = -2 and y = -7
-7 = -6 + c ← add 6 to both side
+6 +6
c = -1
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Plug the value of the y-intercept into the equation y = -3x + c
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y = -3x + c
y = -3x -1
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Answer: y = -3x - 1
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