All categories

3 years ago

Which ones do not represent a function and which ones do represent a function and why?

Mathematics

1 answer:

elena-14-01-66 [18.8K]3 years ago

3 0

7 is not because a couple x values were repeated

8 is not because the x value -2 was used for two y values

9 is not because a couple x values were used for more than one y value

10 is a function is x alue is only used once

hope this helps :)

You might be interested in

A rectangle's width is twice as long as its length. If the perimeter is 36 in., what is the length?

Bumek [7]

Okay here:

Let L be the length and W the width of the rectangle.

1. w=2•L
2. 2L+2W=36

Substitute eq. 1 into eq. 2,

2L+2•(2•L)=36

2L+4L=36

6L=36

L=9

Not done yet, then from eq. 1,

W=2•L
W=2•9
W=18 <------- Your answer. :)

6 0

3 years ago

I kind of need help. I completely forgot how to do ratios

lana66690 [7]

Answer:

7:5

Step-by-step explanation:

a:b=4:5

a:c=2:7

c:b=7:5

brainliest please!!!<3

7 0

3 years ago

whitch of the following shows 27/54 written in prime form to help in reducing the fraction to somplest form

guajiro [1.7K]

$\dfrac{27}{54}=\dfrac{27:9}{54:9}=\dfrac{3}{6}=\dfrac{3:3}{6:3}=\dfrac{1}{2}$

6 0

3 years ago

Kelly, Matt, and Bo are sharing 2 pizzas equally. How much pizza does each person get?

kvasek [131]

Answer:

Hi! The answer is $1.5$

Step-by-step explanation:

$Kelly + Matt + Bo = 3$

$3, People / 2, Pizzas$

$3/2 = 1.5$

$1.5, Pizzas$

☆*: .｡.｡.:*☆☆.*: .｡..｡.:*☆☆*: .｡.｡.:*☆☆.*: .｡..｡.:*☆

☁Brainliest is greatly appreciated!☁

<em>Hope this helps!!</em>

<em>- Brooklynn Deka</em>

4 0

3 years ago

What is x+y=10;y=x+10

Alenkasestr [34]

[ Answer ]

$\boxed{\bold{X \ = \ 0, \ Y \ = \ 10}}$

[ Explanation ]

System Of Equations $\bold{\left \{ {X \ + \ Y \ = \ 10} \atop {Y \ + \ X \ = \ 10}} \right.}$

-----------------------------------

[Substitute] Y = X + 10

$\bold{\begin{bmatrix}x+x+10=10\end{bmatrix}}$

Isolate x for x + x + 10 = 10: x = 0

For y = 10

Substitute x = 0

Y = 0 + 10

0 + 10 = 10

y = 10

Solutions

X = 0

Y = 10

$\boxed{\bold{[] \ Eclipsed \ []}}$

3 0

3 years ago

Which ones do not represent a function and which ones do represent a function and why?​

Which ones do not represent a function and which ones do represent a function and why?