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3 years ago

Write equations for the horizontal and vertical lines passing through the point (-1, -7)

Mathematics

1 answer:

Alex17521 [72]3 years ago

3 0

Answer:

see below

Step-by-step explanation:

The horizontal line will have the same y and the y value will be constant

y = -7

The vertical line will have the same x and the x value will be constant

x = -1

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What is the slope of the line in the coordinate plane?

liberstina [14]

Answer:

slope is rise over run

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3 years ago

For which value(s) of x will the rational expression below equal zero? Check all that apply.

Ivahew [28]

Answer: D.-6 and F.3

Step-by-step explanation:

The given rational number : $\dfrac{(x-3)(x+6)}{(x+7)}$

To find : The value of x , where the rational expression becomes equal zero.

Let's check all the options :

A. 7

At x= 7 , $\dfrac{(7-3)(7+6)}{(7+7)}=\dfrac{26}{7}\neq0$

B. -7

At x= 7 , $\dfrac{(-7-3)(-7+6)}{(-7+7)}=\dfrac{10}{0}=\infty\neq0$

C. 6

At x= 6 , $\dfrac{(6-3)(6+6)}{(6+7)}=\dfrac{36}{13}\neq0$

D. -6

At x= -6 , $\dfrac{(-6-3)(-6+6)}{(-6+7)}=\dfrac{0}{1}=0$

E. -3

At x= -3 , $\dfrac{(-3-3)(-3+6)}{(-3+7)}=\dfrac{-9}{2}\neq0$

F. 3

At x= 3 , $\dfrac{(3-3)(3+6)}{(3+7)}=0$

Thus, at x= -6 and 3 , the rational expression equals to zero .

So , the correct options are : D.-6 and F.3

8 0

3 years ago

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I asked my question. I can not find were you helped me answer the question

Aloiza [94]

Go to profile and click on my questions

8 0

3 years ago

Expand and simplify (6e - 6)(4e + 8).

vesna_86 [32]

Answer:

$24 {e}^{2} + 24e - 48$

3rd answer is correct

Step-by-step explanation:

$(6e - 6)(4e + 8) \\ 6e(4e + 8) - 6(4e + 8) \\ 24 {e}^{2} + 48e - 24e - 48 \\ 24 {e}^{2} + 24e - 48$

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3 years ago

3x²-24x + 12 What’s the factor of

Tems11 [23]

Answer:

[x - (4 + 2√3)] and [x - (4 - 2√3)]

Step-by-step explanation:

Given :

3x² - 24x + 12

Divide throughout by 3 to simplify :

1/3 x (3x² - 24x + 12)
x² - 8x + 4

Using the Quadratic Formula :

x = -b ± √b² - 4ac / 2a
x = -(-8) ± √(-8)² - 4(1)(4) / 2(1)
x = 8 ± √64 - 16 / 2
x = 8 ± √48 / 2
x = 8 ± 4√3 / 2
x = 4 ± 2√3

Factors are :

[x - (4 + 2√3)] and [x - (4 - 2√3)]

6 0

2 years ago

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