X = {(2, 4), (3, 4), (4,4), (5, 4)) Is x a function and why?

Mathematics

2 answers:

egoroff_w [7]2 years ago

6 0

Answer:

x is a function

since it forms a horizontal line it passes the vertical line test and is a function

kow [346]2 years ago

4 0

Because they all have a different x number. Even though the y numbers are the same you can tell wether a set of numbers are a function by the x numbers. So since there are different x numbers it is a function. I hope this helps!

You might be interested in

Which function represents transforming ƒ(x) = 3x with a reflection over the x-axis and a vertical shift of 4 units?

Oxana [17]

Answer:

D. $h(x)=-3x+4$

Step-by-step explanation:

we are given

$f(x)=3x$

Firstly, it is reflected over x-axis

we know that for reflection about x-axis , we can replace y as -y

we get

$g(x)=-f(x)$

$g(x)=-3x$

now, it is vertical shift up by 4 units

so, we can add 4 to y-value

we get

$h(x)=g(x)+4$

$h(x)=-3x+4$

4 0

3 years ago

5 cups to 8 cups MATH HELP!

Nonamiya [84]

Answer:

If it's an addition problem then just add 3 cups

Step-by-step explanation:

There isn't too much context here buddy :p

6 0

3 years ago

Pls help me<br> 4x-2y=14<br> y=1/2x-1

kati45 [8]

Judging by the problem you want me to use substitute method
Since why equals 1/2x-1 you
Do 2(1/2x-1)= x-2
You multiple by 2 cause there’s two on the top for y. So the problem is now 4x-x-2
Combine like terms 3x+2=14
Subtract two on both sides
3x=12
X=4
Go back to the bottom since u know x now do y= 4.1/2-1 solve to get one
Y=1 so your answer is (4,1)

5 0

2 years ago

The proportion of observations from a standard normal distribution that take values greater than 1.36 is:

matrenka [14]

Answer:

We are required to find the proportion of observations from a normal distribution that are greater than 1.36. Mathematically, it can be written as:

$P(z>1.36)$