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WARRIOR [948]
3 years ago
6

What is the equation of the line that has a slope of -2 and passes through the point (-1, 2)?

Mathematics
1 answer:
Iteru [2.4K]3 years ago
8 0

Answer:

The answer is

<h2>y = 2x</h2>

Step-by-step explanation:

To find an equation of a line given the slope and a point we use the formula

y -  y_1 = m(x -  x_1)

where

m is the slope

( x1 , y1) is the point

From the question the point is (-1 , 2) and the slope is - 2

The equation of the line is

<h3>y - 2 =  - 2(x + 1) \\ y - 2 =  - 2x - 2 \\ y =  - 2x - 2 + 2</h3>

We have the final answer as

<h3>y = 2x</h3>

Hope this helps you

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Find the value of x <br><br>23<br>34<br>56<br>14
Juliette [100K]

The two angles together form a straight angle, i.e. an angle of 180 degrees. This means that

7x + 2x+27 = 180

Sum like terms:

9x+27 = 180

Subtract 27 from both sides:

9x = 153

Divide both sides by 9:

x = \dfrac{153}{9} = 17

3 0
3 years ago
josh is looking to get a new car because he decided he was spending too much on gas. over the past year he found that he drove 7
Sveta_85 [38]

Josh's monthly fuel expenses are $1,050.

<h3><u>Prices</u></h3>

Given that Josh is looking to get a new car because he decided he was spending too much on gas, and over the past year he found that he drove 7,700 miles, and at current gas prices of $4.5 he was getting about 27 miles per gallon, To determine, if he bought a vehicle that realizes 33 miles per gallon, what might be a reasonable estimate of monthly gas costs, the following calculation must be made:

  • 27 = 100
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Therefore, Josh's monthly fuel expenses are $1,050.

Learn more about prices in brainly.com/question/18117910

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6 0
2 years ago
Elimination
SVETLANKA909090 [29]
2x -  4y + 1z = 11 ⇒ 2x - 4y + 1z = 11
1x + 2y + 3z = 9   ⇒ <u>1x + 2y + 3z = 9</u>
3x         + 5z = 12       1x - 2y - 2z = 2
                                                                     1x -  2y - 2z = 2
2x -  4y + 1z = 11                                        <u>-2x + 2y - 2z = -3</u>
1x + 2y + 3z = 9   ⇒ 1x + 2y + 3z = 9                    x - 4z = 1
3x         + 5z = 12 ⇒ <u>3x         + 5z = 12</u>          x - 4z + 4z = 1 + 4z
                                 -2x + 2y - 2z = -3                         x = 1 + 4z
                                                     <u />          1 + 4z - 2y - 2z = 2<u />
                                                               1 - 2y + 4z - 2z = 2
                                                                      1 - 2y + 2z = 2
                                                                    <u>- 1                 - 1</u>   
                                                                          -2y + 2z = 1
                                                                   -2y + 2z - 2z = 1 - 2z
                                                                                  <u>-2y</u> = <u>1 - 2z</u>
                                                                                   -2        -2
                                                                                     y = -0.5 + z
                                                         x + 2(-0.5 + z) - 2z = 2
                                                            x - 1 + z - 2z + 2 = 2
                                                                         x - 1 + z = 2
                                                                         <u>  + 1       + 1</u>
                                                                              x + z = 3
                                                                         x - x + z = 3 - x
                                                                                    z = 3 - x
                                                                      
                                            
<u />
4 0
3 years ago
A recipe calls for the following spices: 18 teaspoon of turmeric, 18 teaspoon of ginger, and 14 teaspoon of cumin. What is the t
Sphinxa [80]

Answer:

50 total

Step-by-step explanation:

when it's asking for a total you add the numbers together, and whatever number you get is your answer :)

sorry if it's wronggg :( !!

7 0
3 years ago
What is 0.5% of 30,193,864
DerKrebs [107]

Answer:

what is 0.5% of 30 = 0.15

what is 0.5% of 193 = 0.965

what is 0.5% of 864 = 4.32

Step-by-step explanation:

6 0
2 years ago
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