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3 years ago

I need help with this problem due tonight 10 points!!!

Mathematics

1 answer:

k0ka [10]3 years ago

4 0

Answer:

The value of the slope of the line is 1

Step-by-step explanation:

Here, we want to find the value of the slope of the line that passes through the given points

Mathematically, we have the equation as;

m = (y2-y1)/(x2-x1)

(x1,y1) = (4,-11)

(x2,y2) = (7,-8)

substituting these values in the slope equation, we have;

m = (-8-(-11))/(7-4) = 3/3 = 1

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Consider line segment AB whose endpoints are (1, 4) and (4, 8). If this segment is dilated by a scale factor of 4 centered at th

gulaghasi [49]

Answer:

The length of the new segments A'B' is 20 units ⇒ answer C

Step-by-step explanation:

* Lets revise the dilation

- A dilation is a transformation that changes the size of a figure.

- It can become larger or smaller, but the shape of the figure does

not change.

- The scale factor, measures how much larger or smaller the image

will be

- If the scale factor greater than 1, then the image will be larger

- If the scale factor between 0 and 1, then the image will be smaller

* Lets solve the problem

- line segment AB whose endpoints are (1, 4) and (4, 8) is dilated by

a scale factor of 4 and centered at the origin

∵ The scale factor is 4 and it is greater than 1

- The length of the image of line segment AB will enlarged by the

scale factor 4

∴ A'B' = 4 AB

* Lets find the length of AB by using the rule of the distance

∵ $d=\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}$

∵ A = $(x_{1},y_{1})$ and B = $(x_{2},y_{2})$

∵ A = (1 , 4) and B = (4 , 8)

∴ $(x_{1},y_{1})=(1 , 4)$ and $(x_{2},y_{2})=(4 , 8)$

∵ AB = $\sqrt{(4-1)^{2}+(8-4)^{2}}=5$

∴ AB = 5 units

∵ A'B' = 4 AB

∴ A'B' = 4 × 5 = 20

∴ The length of the new segments A'B' is 20 units

8 0

3 years ago

Please help me.......

DerKrebs [107]

It’s the first one otherwise known as a

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3 years ago

Write the quadratic equation in general form then choose the value of “b”.

Sonbull [250]

Answer:

Write the quadratic equation in general form then choose the value of “b”.

(2x-1)(x+5)=0

A.)9

B.)10

C.)11

Step-by-step explanation:

Expand $(2x-1)(x+5)$

Which is $2x^{2} +9x-5$

$ax^{2} +bx+c\\$

So the value of B is 9

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4 years ago

Why is it useful to rewrite a formula in terms of another variable ?

Anuta_ua [19.1K]

Then you don’t get lost doing the problem

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A yodeler ascends a mountain to its peak to do some sweet yodeling. The peak is 5,800 ft above sea level. The yodeler then desce

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If the yodeler is at 5800 ft above sea level.....and he descends 200 ft....he will then be at (5800 - 200) = 5600 ft above sea level where he meets his friend

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4 years ago