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Ratling [72]
3 years ago
7

Write the equation of a line that passes through the points (-2, -8) and (2, -6).

Mathematics
1 answer:
Anna [14]3 years ago
5 0

Answer:

y = \frac{1}{2} x - 7

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (- 2, - 8) and (x₂, y₂ ) = (2, - 6)

m = \frac{-6+8}{2+2} = \frac{2}{4} = \frac{1}{2} , thus

y = \frac{1}{2} x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation

Using (2, - 6), then

- 6 = 1 + c ⇒ c = - 6 - 1 = - 7

y = \frac{1}{2} x - 7 ← equation of line

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Answer:

one is addition the other is multiplication, though, both the sum and product equal the same solution

Step-by-step explanation:

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natta225 [31]

Answer:

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Step-by-step explanation:

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3 years ago
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dmitriy555 [2]

Answer:

-a + 7b

Step-by-step explanation:

This problem is asking you to simplify the equation.

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2 years ago
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Lemur [1.5K]

Answer: $4110.8 (more likely - 95% sure) or $2,107 (less likely)

Step-by-step explanation: It could be $4110.8 because you have the take the total they made and subtract is from the cost of the toys ($7,230-$2,450=$4,780). Then you have to take the result of that and get 14% of it, then subtract that from the $4,780 amount. Then you get the final answer which is $4110.8.

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However, it could also be $2,107 because the question itsn't that clear in the second sentence. It could be saying that $2,450 is the price of the toys (which is what I assumed above), or that it is the profit that the $2,450 (which I used below). I think that the above answer is more likely because if not then the first number would never be used. Anyways here is the second way it could be.

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3 years ago
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Alenkasestr [34]

Answer:

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Step-by-step explanation:

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