1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
arsen [322]
2 years ago
11

Can someone explain what is domain and range? Gcse math level please

Mathematics
1 answer:
vodka [1.7K]2 years ago
3 0
The domain and range are defined for a relation and they are the sets of all the x-coordinates and all the y-coordinates of ordered pairs respectively. For example, if the relation is, R = {(1, 2), (2, 2), (3, 3), (4, 3)}, then:
Domain = the set of all x-coordinates = {1, 2, 3, 4}
Range = the set of all y-coordinates = {2, 3} take a look at the picture e.g Here, the domain is the set {A,B,C,E}
{
A
,
B
,
C
,
E
}
. D
D
is not in the domain, since the function is not defined for D
D
.

The range is the set {1,3,4}
{
1
,
3
,
4
}
. 2
2
is not in the range, since there is no letter in the domain that gets mapped to 2
2
.
You might be interested in
Ronnie wants to buya computer table that measures 10 feet by 17 feet.The cost of the table is $16 per square foot.How much will
Black_prince [1.1K]

It will cost her 1,710 dollars because 10 times 17 is 170 and 170 times 16 is $1,710
8 0
3 years ago
On Friday, 3/5 of the students wore blue shirts and 1/4 of the students wore white shirts. What fraction of the students wore ei
velikii [3]
Since 3/5 of the students wore blue shirts and 1/4 of the students wore white shirts, you need to find the Total of 3/5 and 1/4.
First, step find a common denominator for both fractions
EXAMPLE: 3/5+1/4=Total 3/5 becomes 12/20 and 1/4 becomes 5/20.
Second, notice that both fractions now have the same denominator, now you can find the sum of both fractions which is 17/20
Finally, you need to check if the fraction can be SIMPLIFIED if not then the fraction is already im simplest form.
THE ANSWER: 17/20 of students wore either a blue or white shirt on Friday

6 0
3 years ago
he length of a rectangle is three times the width. The perimeter is 240 inches. Find the length and the width.
sammy [17]

Answer:

Length = 90 inch.

width = 30 inch

Let width of the rectangle = x inch.

So the length = 3x inch.

Perimeter = 2(length + width) = 2 (3x + x) = 8x.

So,

length = 3x = 3(30) = 90 inch.

width = x = 30 inch

4 0
2 years ago
What is the slope of the line through<br><br> (-8, 10) and (6, 10)?
steposvetlana [31]

Answer:

the slope is 0

Step-by-step explanation:

m=0

4 0
3 years ago
Read 2 more answers
How to find canonical form of equation of a line then general form is given
lisabon 2012 [21]
It is a math mathematical form of objects natural stance, to find it you need the positive integer and its finite sequence of digits.
4 0
3 years ago
Other questions:
  • A spinner contains four equally shaded areas, as shown below. A spinner contains 4 equally shaded areas. 2 sections are shaded b
    13·2 answers
  • My sister needs help and i dont want to help her, heres the question:
    7·2 answers
  • Find the circumcenter of the triangle ABC.
    15·1 answer
  • Write the numerical
    9·1 answer
  • I need the answers soon
    8·1 answer
  • What is an equivalent expression for 4y plus y
    11·1 answer
  • V(t)=2000e^-.35t At what rate's compute value falling after 3 years
    7·1 answer
  • A circle has a circumference of 16 pi inches. What is the radius of the circle?
    8·1 answer
  • Write the equation for the line that passes through the point (-3, 5) and is perpendicular to the x axis
    7·1 answer
  • The table shows the relationship between the number of faculty members and the number of students at a local school. What is the
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!