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Anuta_ua [19.1K]
2 years ago
12

Write an equation of the line that passes through (0, 4) and (0, -3)

Mathematics
2 answers:
andreev551 [17]2 years ago
8 0

Answer: Slope is undefined. x=0

slope calculation: -3-4/0-0 = -7/0 and anything divided by 0 is undefined

the x value in the coordinates is 0 so it’s x=0 line.

vertical lines always have undefined slopes

lesya [120]2 years ago
7 0

Answer:

x=0

Step-by-step explanation:

  1. So first of all we need the slope of the line we are trying to find
  2. We get the slope by using the following formula slope=\frac{y_2-y_1}{x_2-x_1}
  3. So when you have two pairs of points, it will be (x_1,y_1) and (x_2,y_2)
  4. so our points are;
  5. (0,4) the first point, so x_1=0,y_1=4 and
  6. (0.-3) the second point, so x_2=0,y_2=-3
  7. Put this in our equation slope=\frac{(-3)-(4)}{(0)-(0)}=\frac{-7}{0}
  8. Oh no, that can't be right, any number divided by zero is <em>undefined</em>, meaning can't be answered. So this line has no slope
  9. <em> </em>So how do we know the equation? Remember,
  10. (a) if the line is horizontal, then the slope is 0,
  11. (b) if the line is vertical then the slope is <em>undefined</em>
  12. So our line is vertical, meaning it is an equation of x
  13. If it were horizontal it would be an equation of y
  14. So vertical, it is x=??
  15. How do we know what x equals? Just look at our points (0,4) and (0,-3)
  16. For both of them x=0 and this is our equation!
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Answer:

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Step-by-step explanation:

There are <em>an infinite number of possibilities</em>. Any vector whose dot-product with p is zero will be perpendicular to p.

Let m = 0i +1j +ak. Then we require ...

  m·p = 0 = 0×1 +1×2 +a(-2)   ⇒   0 = 2 -2a   ⇒   a = 1

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Answer:

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Step-by-step explanation:

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2 years ago
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