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
andreev551 [17]
3 years ago
10

Determine whether the relations represent y as a function of x.

Mathematics
1 answer:
madam [21]3 years ago
7 0

Answer:

Both of those are functions.

Step-by-step explanation:

y=x^2 is a parabola that opens up.

Any upward or downward parabola is a function because they pass the vertical line test.

x=\pm \sqrt{1-y}{/tex]Square both sides:[tex]x^2=1-y

Subtract 1 on both sides:

x^2-1=-y

Multiply both sides by -1:

-x^2+1=y

So this is a another parabola and it is faced down.  So this is also a function.

y=ax^2+bx+c wit a \neq 0 willl always be a parabola.  

If a>0 then it is open up.

If a then it is open down.

Upwards and downward parabolas will always be functions.

x=ay^2+by+c are also parabolas but these open to the left or right.  These will not be functions because they will not pass the vertical line test.  

You might be interested in
The width of a rectangle is 7 meters greater than its length. If the area of the rectangle is 170 square meters, write the quadr
mamaluj [8]
In this case you divide 170 by 7 which = 24.29 so 24.29 is your answer, good luck.
5 0
2 years ago
Fill in the box with the appropriate measure.<br> quick please I have only a few min left
Art [367]

Step-by-step explanation:

first box on the left

r=4

d=8

circumference= 2π*4= 8π

area = π*4*4= 16π

Second box on the left

d=6

r= 3

circumference= 2π*3= 6π

area =π*3*3= 9π

third box on the left

A=36π

A=36πarea= π*r*r

A=36πarea= π*r*rr= 6

A=36πarea= π*r*rr= 6d=12

A=36πarea= π*r*rr= 6d=12circumference= 2π*6= 12 π

the last box

C=18π

C=18πC= 2π*r

C=18πC= 2π*rr= 9

C=18πC= 2π*rr= 9d=18

C=18πC= 2π*rr= 9d=18area= π*9*9= 81π

8 0
2 years ago
Which of the following could be<br> the sum of exactly three<br> consecutive even integers?
OLEGan [10]

Answer: 198 is your answer:65+66+67 = 198 Hope I helped!

Step-by-step explanation:

8 0
2 years ago
Solve for x.<br> 9(x - 2) = 18<br> o x=0<br> X = 16/9<br> x = 20/9
iragen [17]

Answer:

x = 4

Step-by-step explanation:

9(x - 2) = 18

9x - 18 = 18

9x = 18 + 18

9x = 36

x = 36/9

x = 4

5 0
2 years ago
Read 2 more answers
Please help me get the
raketka [301]

R u asking the equations for the slopes of these points, the parallel the perpendicular slopes?? If m right tell me in the comments I'll answer you there.

3 0
2 years ago
Read 2 more answers
Other questions:
  • One leg of an isosceles right triangle measures 5 inches. Rounded to the nearest tenth, what is the approximate length of
    9·1 answer
  • M mr. Brown has $410,000 in a retirement account that earns 3.85% interest each year. Find the amount earned each year by his in
    5·1 answer
  • Please help me its just a problem with shaded areas and all i want is the answer but you can show the work if u want 2 plz also
    11·1 answer
  • Steve wants to know what the average ACT scores of students graduated from his high school is. He randomly selected 25 students
    5·1 answer
  • for hockey messer makes ice that’s 1 and 1/4 inch thick. Each individual layer is 5/64 of and inch thick. How many layers does M
    9·1 answer
  • Es equivalente?<br><br>2 10<br>- y -<br>3 15​
    6·1 answer
  • Plz help me asap !!!
    9·1 answer
  • 1. The circumference of a circle is 111 inches. What is the area, in square inches of the Circle? Express your answer in terms o
    6·1 answer
  • PLZ PLZ HELP WILL MARK BRAINLIEST Select ALL the correct answers. Select all the expressions that will include a remainder.
    8·1 answer
  • Alysa is solving the question below
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!