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mina [271]
3 years ago
7

Which equation is a point-slope form of the equation of this line?

Mathematics
2 answers:
steposvetlana [31]3 years ago
8 0
Slope = (7 -1)/(1+2) = 6/3 = 2

equation of <span>point-slope form

y - 1 = 2(x + 2)

hope it helps</span>
lara31 [8.8K]3 years ago
3 0

Answer:

y-7=2(x-1)

Step-by-step explanation:

Point slope form of an equation is basically based on slope of line and point that lie on a line.

Slope refers to steepness of line.

In order to find slope of a line, we divide the difference of y-coordinates of two points by the difference of x-coordiantes of two points.

For two points \left ( x_1,y_ 1\right )\,,\,\left ( x_2,y_2 \right ), slope is given by m=\frac{y_2-y_1}{x_2-x_1}.

Point slope form is y-y_1=m(x-x_1)

Here, m is the slope of line .

\left ( x_1,y_1 \right )=\left ( 1,7 \right )\\\left ( x_2,y_2 \right )=\left ( -2,1 \right )

Slope:

m=\frac{1-7}{-2-1}=\frac{-6}{-3}=2

So, equation is y-7=2(x-1) .

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Talja [164]

Step-by-step explanation:

AB · BE = CB · BD            Given

CB/BE = AB/BD               Division Property of Equality

<ABC = <DBE                  Vertical angles are equal

ΔABC ≅ ΔDBE                SAS Similarity Theorem


Hope it helps

7 0
3 years ago
Read 2 more answers
2x + 3 &gt; 13<br> x= 0<br> is this true?<br> O True<br> O False
omeli [17]

False.

Replace x with 0 and solve:

2(0) + 3 = 0+ 3 = 3

3 is not greater than 13 so the answer is false.

5 0
2 years ago
Lynn is making custom bricks. She combines 39 pounds of water and 48 pounds of brick dust
vova2212 [387]

Answer:

10, and 4.

Step-by-step explanation:

39+48=87

87-13=74

74 divided by 7= 10 R4

Greatest amount of bricks= 10

Leftovers= 4.

5 0
3 years ago
Leila puts an integer into the "In" box of each machine.
kykrilka [37]

The machines represent equivalent expressions.

The output produced by both machines is 372

The equation represented on machine A is:

\mathbf{y = 2(5x + 3) - 24}

The equation represented on machine B is:

\mathbf{y = 4(2(x + 11) - 7)}

Where: x and y represent the inputs and the outputs, respectively

When the outputs are the same, it means:

\mathbf{y = y}

So, we have:

\mathbf{2(5x + 3) - 24 = 4(2(x + 11) - 7)}

Open brackets

\mathbf{10x + 6 - 24 = 8x + 88 - 28}

\mathbf{10x - 18 = 8x + 60}

Collect like terms

\mathbf{10x - 8x = 18 + 60}

\mathbf{2x = 78 }

Divide both sides by 2

\mathbf{x = 39 }

Substitute 39 for x in \mathbf{y = 2(5x + 3) - 24}

\mathbf{y = 2 \times (5 \times 39 + 3) - 24}

\mathbf{y = 372}

Hence, the output produced by both machines is 372

Read more about equivalent expressions at:

brainly.com/question/15715866

4 0
3 years ago
Sweet tea purchased a new pair of jeans to wear to the battle of the bands on sale at 40% off.He saved 20 dollars.What was the r
MaRussiya [10]

Answer:

50

Step-by-step explanation:

50$ because 20$ is 40%, so times that by 2 which you get 20$ and 80%. Then you divide 20 by 2 then you get 10 which is 20% so you add 10 and you get 50$ which is 100%

3 0
3 years ago
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