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elena-s [515]
3 years ago
9

Write an equation in point-slope form of the line that passes through the point (4,7) and has a slope of -1

Mathematics
1 answer:
monitta3 years ago
8 0

Answer:

3x+y=9 has slope -3. A line in the plane and parallel to the given equation's line also has slope -3. To also pass through a point (4,-7), the equation for this line is y%2B7=-3%28x-4%29, in the point-slope form.

Step-by-step explanation:

i hope this helps P. S Im still a Elementary hindi ko po alam lahat sorry

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Answer:

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Step-by-step explanation:

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1.26+18=19.26

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Given the following table, find the equation that matches it.​
bagirrra123 [75]

Answer:

The equation that matches the table is y = -5x + 7 ⇒ C

Step-by-step explanation:

The form of the linear equation is y = m x + b, where

  • m is the slope of the line
  • b is the y-intercept (value y at x = 0)

The rule of the slope is m =  \frac{y2-y1}{x2-x1} , where

  • (x1, y1) and (x2, y2) are two points on the line

From the given table

→ Choose any two points from the table

∵ Points (0, 7) and (1, 2) are in the table

∴ x1 = 0 and y1 = 7

∴ x2 = 1 and y2 = 2

→ Substitute them in the rule of the slope above

∵ m = \frac{2-7}{1-0}=\frac{-5}{1}

∴ m = -5

→ Substitute it in the form of the equation above

∵ y = -5x + b

∵ b is the value of y at x = 0

∵ At x = 0, y = 7

∴ b = 7

∴ y = -5x + 7

∴ The equation that matches the table is y = -5x + 7

7 0
2 years ago
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