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Rudiy27
3 years ago
11

A. Find a slope-intercept equation for line A. b. Find a point-slope for line B.

Mathematics
1 answer:
lara [203]3 years ago
3 0
The slope intercept form of the line is given by:
 y = mx + b
 The point-slope form is given by:
 y-yo = m (x-xo)
 Where,
 m: slope of the line
 b: cutting point with the y axis
 (xo, yo): ordered pair that belongs to the line

  For line A:
 The slope is 
 m = \frac{1-3}{4-1}
 m = \frac{-2}{3}
 The cut point with the y axis is:
 b = \frac{11}{3}
 Substituting values we have:
 y = -\frac{2}{3}x + \frac{11}{3}

  For line B:
  The slope is given by:
  m=\frac{1-(-5)}{4-0}
  m=\frac{1+5}{4}
  m=\frac{6}{4}
  m=\frac{3}{2}
  Then, the equation of the line is:
  y-1= \frac{3}{2}(x-4)

  Answer:
  
Option A
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Answer:

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Step-by-step explanation:

see the attached figure with letters to better understand the problem

Let

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b ---> the base of rectangle in mm

step 1

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step 2

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step 3

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substitute

A=(6+3\sqrt{3})(12)=(72+36\sqrt{3})\ mm^2

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