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3 years ago

Which set of ordered pairs is on the graph of the function below? y = 2x

Mathematics

1 answer:

oksian1 [2.3K]3 years ago

7 0

Answer:

I hope I'm right but not totally sure (0,0) and (1,2)

Step-by-step explanation:

Graph the line using the slope and y-intercept, or two points.

Slope: 2

y-intercept: 0

x y

0 0 <<<<< That's supposed to be a chart

1 2

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For what values of the variables are the following expressions defined? 1. 5y+2 2. 18/y 3. 1/x+7 4. 2b/10−b Example: X>7

Serga [27]

Answer:

1. All real numbers

2. All real numbers except y = 0

3. All real numbers except x = -7

4. All real numbers except b = 10

Step-by-step explanation:

For any function to be defined at a particular value, it should not be approaching to a value $\infty$ or it should not give us the $\frac{0}{0}$ (zero by zero) form when the input is given to the function.

The value of function will depend on the denominator.

Now, let us consider the given functions one by one:

1. 5y+2

Here denominator is 1. So, it can not attain a value $\infty$ or $\frac{0}{0}$ (zero by zero) form

So, for all real numbers, the function is defined.

$2.\ \dfrac{18}{y}$

At y = 0, the value

$At\ y =0, \dfrac{18}{y} \rightarrow \infty$

So, the given function is defined for all real numbers except y = 0

$3.\ \dfrac{1}{x+7}$

Let us consider denominator:

x + 7 can be zero at a value x = -7

$At\ x =-7, \dfrac{1}{x+7} \rightarrow \infty$

So, the given function is defined for all real numbers except x = -7

$4.\ \dfrac{2b}{10-b}$

Let us consider denominator:

10-b can be zero at a value b = 10

$At\ b =10, \dfrac{2b}{10-b} \rightarrow \infty$

So, the given function is defined for all real numbers except b = 10

7 0

3 years ago

There are 5 candy canes for every 9 presents. How many candy canes are there when there are 108 presents

Ksju [112]

Answer:

When there are 108 presents, there are 60 candy canes

Step-by-step explanation:

candy canes : presents = 5:9

5/9 = x/108

cross multiply:

(5) (108) = 9x

540 = 9x, divide both sides by 9

x = 60

5 0

2 years ago

The differnce between a number divide by 3 and 4 is 20

Talja [164]

Answer:

(n/3)/4 =20

Step-by-step explanation:

i think this is what your looking for if not im sorry

have a blessed day :)

3 0

2 years ago

Which of the following algebraic expressions can be used to express the statement "three less than z squared?"

Citrus2011 [14]

"z˄2 − 3" because x squared is z^2, and 3 less of it would mean to subtract it from 3

6 0

3 years ago

Nora has $50 saved and gets $12 a week in allowance. Write a function to show the total amount of money she will have saved afte

Maksim231197 [3]

Answer:

After 'n' weeks?

Step-by-step explanation:

Make sure your question makes sense.

5 0

3 years ago