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Vesna [10]
3 years ago
13

A group of students went on a hike and measured the change in elevation over the length of the trail. They plotted these data on

the graph shown below. They wanted a shorthand way to describe the line that represents the trail. Which slope-intercept equation describes the line? y - intercept = (0,2) slope = -1 A. y = -x + 2 B. y = x - 2 C. y = x + 2 D. y = -x - 2
Mathematics
1 answer:
Lyrx [107]3 years ago
6 0
The correct answer for this question is this one: "<span>y = -x + 2"</span>

<span> y - intercept = (0,2) slope = -1

y = mx + b
2 = -1 (0) + b
b = 2

so the equation of the line is
<u>y = -x + 2</u></span>
Hope this helps answer your question and have a nice day ahead.
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Read image for instructions
Oliga [24]

The last part answers the first part for you, just look at the y-values.

In other words:

<em>A'</em><em> </em>(-8, 2)

<em>B'</em> (-4, 3)

<em>C'</em> (-2, 8)

<em>D'</em> (-10, 6)

Explanation:

When you reflect any point over the x-axis, the y-value of the ordered pair is going to change.

This makes sense especially considering that the x-axis is horizontal, so the only way you could cross is to move up or down. If you were to move left or right, you'd only be able to cross the y-axis, since it's vertical.

Now for the last part, as I mentioned above, if you are reflecting across the y-axis, the x-values of the ordered pair is going to change.

<em>A'</em><em>'</em> (8, 2)

<em>B'</em><em>'</em> (4, 3)

<em>C'</em><em>'</em> (2, 8)

<em>D'</em><em>'</em> (10, 6)

Take note that the only thing that changes for the respective value is its sign, while the number itself stays the same.

3 0
2 years ago
Which proportion could you use to convert 4.5 tons to pounds?<br><br><br><br> 4.5 tons =____ pounds
mina [271]

Answer:

9000 pounds

Step-by-step explanation:

Since there are 2,000 pounds in a ton, you should use the proportion on the left.

Solve the equation:

\frac{2000}{1} = \frac{?}{4.5} \\(2000)(4.5) = 9000

6 0
1 year ago
Read 2 more answers
5. The length of a rectangular swimming pool is 50 yards, and the width of the pool is 16
d1i1m1o1n [39]
The answer is C. I got this by doing a^2 + b^2= c^2. 50^2 + 16^2=c^2, 2500 + 256 = c^2, 2756 = c^2, then you take the square root of 2756 and that gives you your answer 52.50 yards. Hope this helps :D
7 0
2 years ago
Kristin bought one cantaloupe for $2. How many cantaloupes can Natalie buy if<br> she has $8?
docker41 [41]

Answer:

4

Step-by-step explanation:

5 0
2 years ago
Bob the builder is making 480kg of concrete mix
vichka [17]

To answer this item, we are first to determine the common factor between the amounts of the cement, sand, and gravel.


If we let x be this factor, the amount of the cement would be x. Similarly, the amount of sand is 3x, and lastly the amount of gravel is 4x. Then, we establish the equation that would let us relate the amounts.


      x + 3x + 4x = 480


Simplifying,

    8x = 480

     x = 60


Hence, the amount of cement is 60 kg, that of sand is 180 kg. Lastly, the amount of gravel is 240 kg. 



5 0
3 years ago
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