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Tanya [424]
3 years ago
6

A set of ordered pairs (x,y) __. it may or may not also be a function.

Mathematics
1 answer:
Scorpion4ik [409]3 years ago
5 0

(1, 8)

(x, y)

That is an example of an ordered pair. Would you like an example of a function as well?

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Find the slope of the line passing through the pairs of points and describe the line as rising, falling, horizontal or vertical.
Anna [14]

Answer:

a.\ m=2,\ \text{the line is rising}\\\\b.\ m=-\dfrac{5}{4},\ \text{the line is falling}\\\\c.\ m=0,\ \text{the line is horizontal}\\\\d.\ m\ is\ unde fined,\ \text{the line is vertical}

Step-by-step explanation:

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

If

m > 0, then a line is rising

m < 0, then a line is falling

m = 0, then a line is horizontal

m is undefined, then a line is vertical

<h2>a.</h2>

(2, 1) and (4, 5)

m=\dfrac{5-1}{4-2}=\dfrac{4}{2}=2>0\to\text{rising}

<h2>b.</h2>

(-1, 0) and (3, -5)

m=\dfrac{-5-0}{3-(-1)}=\dfrac{-5}{4}=-\dfrac{5}{4}

<h2>c.</h2>

(2, 1) and (-3, 1)

m=\dfrac{1-1}{-3-2}=\dfrac{0}{-5}=0\to\text{horizontal}

<h2>d.</h2>

(-1, 2) and (-1, -5)

m=\dfrac{-5-2}{-1-(-1))}=\dfrac{-7}{0}\ \text{UNDEFINED}\to\text{vertical}

7 0
3 years ago
Which of the following methods can be used to determine if a relation is a function?? Select all that apply.
CaHeK987 [17]

Answer:

B)  Write out the relation in an x-y table and check that each x-value corresponds to the only one x - value

8 0
3 years ago
What is the variables on both sides equations? 3x - 6 = 7x + 1​
nlexa [21]

Answer:

3x-6=7x+1

=> 3x-7x = 6+1

=> (-4)x=7

=>x = 7/4 = 1.75

6 0
3 years ago
I need help pleaseeeeeeeeeeeeeeeee!!!!!!!!!!!!!!!!!!!!!!!!
liq [111]

Answer:

2/12

Step-by-step explanation:

You have to divide 2/3 by 4 which is the same as multiply 2/3 with 1/4.

This will give you 2/12

3 0
2 years ago
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What is the surface area of the cube shown?<br> square centimeters
Mnenie [13.5K]

Answer: 253.5

Step-by-step explanation:

4 0
3 years ago
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