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Snowcat [4.5K]
3 years ago
7

Simplify the following expression: NEED HELP QUICK PLZ :(

Mathematics
1 answer:
Anna71 [15]3 years ago
5 0
The answer is B

-8y + 7y = -y

When the signs are different, subtract and take the sign of the bigger number.
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Why is the equation y-y1=m(x-x1) called the point-slope form?
MatroZZZ [7]

Answer:

The equation of the line with slope m = 2 and passing through the point (1, 1) will be:

y = 2x

Step-by-step explanation:

We know that the point-slope form of the line equation is

y-y_1=m\left(x-x_1\right)

where

  • m is the slope of the line
  • (x₁, y₁) is the point

The formula y-y_1=m\left(x-x_1\right) is termed as the point-slope form of the line equation because if we know one point on a certain line and the slope of that line, then we can easily get the line equation with this formula and, hence, determine all other points on the line.

For example, if we are given the point (1, 1) and slope m = 2

Then substituting the values m = 2 and the point (1, 2)

y-y_1=m\left(x-x_1\right)

y - 2 = 2(x-1)

y - 2 = 2x-2

y = 2x-2+2

y = 2x

Therefore, the equation of the line with slope m = 2 and passing through the point (1, 1) will be:

y = 2x

5 0
2 years ago
Please need help thank
babymother [125]

Answer:

1

Step-by-step explanation:

One member in the graph only went one time which is fewer than two times.

3 0
2 years ago
Someone help me with this ASAP please I’m being timed !
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Answer:

snacks were $2.50

ticket was $8.75

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3 years ago
22, 24,27,27,25,25,25,23,24,32,28,20 a) Determine as mediana dessas idades a cima: b)Determine a amplitude dessas idades *COLOQU
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Answer:

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Step-by-step explanation:

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3 years ago
What are the solutions to 4(x+5)^2=4?
aleksandr82 [10.1K]
(X+5)²=4/4
X+5=1,          X+5=-1
X=1-5            X=-1-5
X=-4             X=-6
                      
4 0
3 years ago
Read 2 more answers
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