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3 years ago

What is the definition of union and intersection

Mathematics

1 answer:

Mkey [24]3 years ago

3 0

Step-by-step explanation:

the union of two sets is a new sets that contains all of the elements that are in at least one or two sets and written as (A U B)

while intersection of two sets is a new set that contains all of the elements in both sets and written as (A n B)

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Which function is a horizontal compression of its parent function f(x)=x^7 by a factor of 4

evablogger [386]

Answer:

$r(x)=(4x)^7$

Step-by-step explanation:

For a horizontal compression, we multiply whole numbers greater than 1 in front of $x$ of the given function.
For horizontal expansion, we multiply by the reciprocal of the number for horizontal compression, in front of $x$ of the function.

For example,

If we wanted to horizontally compress $y=x^2$ , we would multiply by 4 to get $y=(4x)^2$ , and

if we wante to horizontally expand $y=x^2$ , we would multiply by $\frac{1}{4}$ to get $y=(\frac{1}{4}x)^2$

Since this question asks for horizontal compression, we multiply the $x$ of the function by 4. So the function we need is $f(x)=(4x)^7$ . The second choice is correct.

8 0

3 years ago

(4,2) graph the vertex

ipn [44]

Answer:

To plot (4,2) start at the origin (0,0) and move right 4 units and up 2 units (4,2)

3 0

3 years ago

Please answer questions 7 and 9!! I need help and show work and explain

Julli [10]

Hey!

Hope this helps...

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Question 7: Is the Graph a 1-to-1?

The answer is: No

Reason: If you look at the graph, you see that when the x value is -1 the y value is -2, when x is 0, y is 0. When x is 1, y is 2, when x is 3, y is 4, and so on and so on...

Question 9: What is f(2)?

The answer is: When f (or x) is 2, y is 3... so f(2) = 3

Reason: (Look at reason for Question 7)

I hope this helped, if it did, please do not forget to give a "Thanks" and a 5 star rating...

And as always, thanks for using Brainly...

3 0

3 years ago

the price of jet fuel in north america during the last week of 2012 was recorded as $3,062 for 1,000 gallons. What was the unit

Andrews [41]

$3,062 for 1,000 gallons

3062 ÷ 1000 = 3.062

Unit rate:- $3.062 per gallon

6 0

3 years ago

a jar contains 16 marbles of which 1 is blue 5 red are red and the rest are green what is the ratio of green marbles to all marb

zloy xaker [14]

Answer: 10:16

Step-by-step explanation:

16-5-1=10

8 0

3 years ago