All categories

3 years ago

Which set of ordered pairs represents a function?

Mathematics

1 answer:

KATRIN_1 [288]3 years ago

3 0

Answer:

{(3, -1), (7, 1), (-6, -1), (9, 1), (2, -1)}

Step-by-step explanation:

Any relation having repetitive x-coordinates, is NOT a function.

You might be interested in

Help please i dont know what to do!

djverab [1.8K]

Answer:

A = 22x + 330

from what I can see from the picture

Step-by-step explanation:

A = lw

A = (x + 15) x (22)

A = 22x + 330

4 0

3 years ago

Read 2 more answers

A student was asked to identify the following numbers as rational or irrational. Determine if the student has made any mistakes.

ioda

Answer:

Yes they are wrong, rational & irrational ones down below.

Step-by-step explanation:

So, lets start this by asking, what is a rational and irrational number?

Rational numbers are literally any numbers that arent pi, e, or other symbols, as well as square roots.

Irrational numbers are exactly the opposite, being the numbers that are symbols, including square roots.

Note that the symbols listed above such as pi are values that are neverending.

Now, using what we know of rational and irrational numbers, let see which answers are rational and which are not.

So, we start off with:

-13/3

I do not see a square root.

I do not see a symbol such as pi either.

It is not a ever going number.(number that continues infinitly)

So -13/3 is a rational number.

Next we have $\sqrt{37}$

immediatly we tell it has a square root.

So $\sqrt{37}$ is a irrational number.

Next we have 0.1234

This is not a every going number.

There isnt a square root.

And it isnt a symbol.

So 0.1234 is a rational number.

Next we have $-\sqrt{100}$

Again, we can immediatly know it has a square root.

So $-\sqrt{100}$ is a irrational number.

Next we have -77

This is not every going.

It doesnt have a square root.

It doesnt have a symbol.

So -77 is a rational number.

Lastly we have $-\sqrt{12}$

Like the other ones, we can imediatly tell it has a square root.

So $-\sqrt{12}$ is a irrational number.

Bascially, to answer further questions, here is the criteria for a number being rational:

It does not have a square root.
It does not have a symbol.
It is not a infinitly going on number.

If one of these criterias are not met, then you know its a irrational number.

Hope this helps! :D

6 0

3 years ago

Question #1

alukav5142 [94]

Answer:

x = sandwiches
y = wraps
y = -3/4x +420
y-intercept = 420
m = -3/4

Step-by-step explanation:

This is a reading comprehension question. The problem statement tells you ...

"x number of sandwiches" and "y number of wraps."

You should be able to deduce that ...

x represents the number of sandwiches

y represents the number of wraps

___

The equation 3x+4y=1680 is put into slope-intercept form by solving for y.

4y = -3x +1680 . . . . . subtract 3x

y = (-3/4)x + 420 . . . .divide by 4

Comparing this to the slope-intercept form y = mx + b, where m is the slope and b is the y-intercept, we see that ...

y-intercept = 420

m = -3/4

7 0

3 years ago

The side lengths of a triangle are 40, 50, and 80. What are the angle measures in the triangle?

antoniya [11.8K]

I think the answer is a

4 0

3 years ago

Choose the correct x-intercepts for the following quadratic function. f(x)= x^2 + 5x – 14

nordsb [41]

Answer:

x= -7 x = 2

Step-by-step explanation:

f(x)= x^2 + 5x – 14

To find the x intercepts, set the function equal to zero

0 = x^2 + 5x – 14

Factor

What two numbers multiply to -14 and add to 5

7*-2 = -14

7+-2 = 5

0= (x+7) (x-2)

Using the zero product property

x+7 =0 x-2 =0

x= -7 x = 2

3 0

3 years ago