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jek_recluse [69]
3 years ago
5

Is this relation a function? {(2, 5), (3, 8), (4, 6), (7, 20)} Yes No

Mathematics
1 answer:
SVEN [57.7K]3 years ago
4 0
Yes the x values are all different, if two were the same then it would not be one but in this case it is
You might be interested in
Section B: Multiples and factors 1. Why is the number 17 classified as a prime number? ​
12345 [234]
17 is a prime number because it’s only divisible by 1 and it’s self, so it only has 2 factors.
4 0
2 years ago
Read 2 more answers
Of 10<br> Find the gradient of the line segment between the points (2,-2) and (0,-6).
Veseljchak [2.6K]

Answer:

<h3>The answer is 2</h3>

Step-by-step explanation:

The gradient of a line given two points can be found by using the formula

m =  \frac{ y_2 - y _ 1}{x_ 2 - x_ 1}  \\

From the question we have

m  =  \frac{ - 6 -  - 2}{0 - 2}  =  \frac{ - 6 + 2}{ - 2}   =   \frac{ - 4}{ - 2}  = 2 \\

We have the final answer as

<h3>2</h3>

Hope this helps you

6 0
3 years ago
How do I do this? Please explain in detail.
umka2103 [35]
22.5/(x-6) + 22.5/(x+6) = 9
multiply by x-6
=> (x-6)22.5/(x-6) + (x-6)22.5/(x+6) = 9(x-6)
=> 22.5 + (x-6)22.5/(x+6) = 9(x-6)
multiply by x+6
=> (x+6)22.5 + (x+6)(x-6)22.5/(x+6) = 9(x-6)(x+6)
=> (x+6)22.5 + (x-6)22.5 = 9(x-6)(x+6)
distribute
=> 22.5x+6(22.5) + 22.5x - 6(22.5) = 9(x^2 - 36)
=> 45x = 9x^2 - 9(36)
=> 0 = 9x^2 - 45x - 9(36)
divide by 9
=> 0 = x^2 - 5x - 36
=> 0 = x^2 - 5x - 36
=> 0 = (x - 9)(x + 4)
x=9 and -4
8 0
3 years ago
Read 2 more answers
What times what gives you 5700?
notsponge [240]

Answer:

57 × 10 will give you 5700, as well as 285 × 20.

6 0
2 years ago
Solve question in image (yr 8 math, 40 pt)
Nady [450]

Answer:

y = 3

Step-by-step explanation:

(5y - 3)/4 + 6 = 3y

5y - 3 + 24 = 12y

7y = 21

y = 3

Check.

(5*3 - 3)/4 + 6 = 3*3

(15 - 3)/4 + 6 = 9

12/4 + 6 = 9

3 + 6 = 9

9 = 9

7 0
2 years ago
Read 2 more answers
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