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horsena [70]
3 years ago
9

Write an equation in point-slope form and slope-intercept form

Mathematics
1 answer:
liq [111]3 years ago
6 0

Answer:

point-slope form: y - 1 = -4/5(x - 8)    

slope-intercept form:  y = -4/5x + 7.4

Step-by-step explanation:

Find slope using the points (8, 1) and (-2, 9):

  m = (y₂ - y₁) / (x₂ - x₁)

      = (9 - 1) / (-2 - 8)

      = 8 / -10

  m = -4/5

Find y-intercept using slope m from above and anyone of the given points, let's use (8, 1):

  y = mx + b

  1 = -4/5(8) + b

  1 = -6.4 + b

   b = 7.4

Use slope m and y-intercept b above to form equation of line in slope-intercept form:

  y = mx + b

  y = -4/5x + 7.4

For point slope form use slope m from above and a point, again let's use (8, 1):

  y - y₁ = m(x - x₁)

  y - 1 = -4/5(x - 8)    

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Answer: 2%

Step-by-step explanation:

Let A be the event of having defective steering and B be the vent of having defective brake linings.

Given: P(A)  = 0.03  P(B) = 0.05

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Using formula: P(either A nor B) = 1- P(neither A nor B )

= 1-0.94

i.e.  P(either A nor B) =0.06

Using formula:P(A and B) = P(A)+P(B)-P(either A or B)

P(A and B) =0.03+0.05-0.06

= 0.02

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3 years ago
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mixas84 [53]

Answer:

21

Step-by-step explanation:

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3 years ago
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Ivanshal [37]

question 19

equal to: 3's

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question 20

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1/2

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Answer:

A

Step-by-step explanation:

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Answer:

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See attached image for the plot.

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3 years ago
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