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
evablogger [386]
3 years ago
13

Which of the following is an example of a function?

Mathematics
1 answer:
Leokris [45]3 years ago
4 0
A. Not a function since we have the points (-1,0) and (-1,3). The x value repeats while the y values are different. Plugging in x = -1 leads to multiple outputs, which shows we don't have a function. To get a better visual, you can plot the points. You'll see that the points form a vertical line. Therefore, this graph fails the vertical line test. 

B. This is a function. All of the x values are different. The points, when graphed, pass the vertical line test. In other words, its impossible to draw a vertical line through any two points on the graph. Any x input here leads to exactly one y output.

C. This is not a function. Like choice A, we have repeated x values. In this case we have (4,6) and (4,7). The x value x = 4 repeats itself leading to multiple outputs y = 6 and y = 7

D. This is also not a function. The x value x = 0 repeats itself. The graph fails the vertical line test.

--------------------------------

Answer: Choice B

<span />
You might be interested in
What is the length of line RS? Use the law of sines to find the answer.Round to the nearest tenth.
Verdich [7]
Using the law of sines,
sin80°/3.1 = sin∠QSR/2.4
∠QSR = sin^-1(2.4sin80°/3.1)
≈ 49.679°
∠SQR = 180° - 80° - 49.679° (angles in a triangle)
= 50.321°
sin50.321°/RS = sin80°/3.1
RS = (3.1sin50.321°/sin80°)
= 2.4 units (nearest tenth)
The length of line RS is 2.4 units.
8 0
3 years ago
For how long would a 68 kg person have to swim at a fast crawl to use all the energy available in a typical fast food meal of bu
irina1246 [14]
<span>Taking this to a Physics formula of Time equals energy times efficiency over power equals (5670kJ)(0.25) over 800J/s equals 1770 s which gives the solution 30 minutes. Therefore, it will take 30 minutes for a 68kg person to swim at a fast crawl in order to use all the energy available in a typical fast food meal of a burger, fries, and a drink. I estimated with a 25% efficiency for work capacity at swimming at a fast crawl in this equation.</span>
6 0
3 years ago
Help picture below problem 8
Radda [10]

Answer:

C. never

Step-by-step explanation:

A trapezoid has exactly one pair of opposite sides parallel.

A parallelogram has exactly two pairs of opposite sides parallel.

A trapezoid is never a parallelogram.

6 0
2 years ago
If the equation x^2 - 12x - 9 = 0 is converted to the form (x - b)^2 = c and the resulting equation is (x - 6)^2 = c, what is th
Radda [10]

Answer:

Step-by-step explanation:

Identified

7 0
3 years ago
F(x) = 3x + 1<br> f(2)=?
ANEK [815]

Answer: 7

Step-by-step explanation:

f(x) 3x+1

f(2) = 3(2) +1

f(2) = 6+1

     = 7

7 0
3 years ago
Other questions:
  • Two math questions
    8·1 answer
  • URGENT HELP PLEASE: What are the values of a1 and r of the geometric series?
    14·1 answer
  • The Sugar Sweet Company is going to transport its sugar to market. It will cost $5250 to rent trucks, and it will cost an additi
    10·1 answer
  • Mrs wong has 2000 plants in her nursery . 65% of the plants were orchids and the rest were roses . after some orchids were sild
    15·1 answer
  • A line PQ passes through the points (-8, -1) and (-2, 3). The equation of line RS is -2y -3x =13. Is the line PQ parallel to RS?
    7·1 answer
  • If a puppy weighs 59 oz in 9 weeks how much did I gain if it was 5 oz at birth
    7·2 answers
  • Based on the graph, what are the rate of change and the y intercept of the line.
    9·1 answer
  • Which equation should we use when solving for the value?<br>y=4x-17<br>y=2x-9​
    12·1 answer
  • BRAINLIEST TO WHOEVER ANSWERS FIRST!
    13·1 answer
  • Help Me with this please
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!