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
Zolol [24]
2 years ago
9

Which equation does not represent a function? A) y = 2x + 3 B) x = 4y + 7 C) 6x - 5y = 8 D) y2 = -5x - 8

Mathematics
2 answers:
yulyashka [42]2 years ago
6 0

Answer:

D) y2 = -5x - 8

Step-by-step explanation:

A function is a rule between two sets A and B so that each element of set A (Domain) corresponds to a single element of set B (Range). Mathematically they can be expressed as:

f: A\rightarrow B\\\\a\rightarrow b =f(a)

So:

y^2=-5x-8\\\\y=\pm \sqrt{-5x-8}

Isn't a function because the elements of the domain don't corresponds to a single element of the range.

We can see this in an easier way using the vertical line test, which is a visual way to determine if a curve is a graph of a function or not. If a vertical line intersects a curve in an xy plane more than once, then for a value of x the curve has more than one value of y, and then the curve does not represent a function.    

I attached you the graphs, so you can corroborate the results visually.

marin [14]2 years ago
4 0
D. It is not a function because there are multiple outputs for one input. 
You might be interested in
Please find the value of x, show work if possible:<br><br> m=10x−x
Elanso [62]

m = 10x - x

  • Combine like terms.

m = 9x

  • Divide both sides by 9.

x = m/9

7 0
3 years ago
Read 2 more answers
A polynomial function p has zeros of 2, 2, −3, −3, −3, and 4.Find a possible formula for P, and state its degree.Why is the degr
Svet_ta [14]

Answer:

Step-by-step explanation:

p(x)=(x-2)²(x+3)³(x-4)

degree=6

degree =number of zeros

6 0
3 years ago
What’s the answer to this please? Thanks!
Serjik [45]

Answer:

70

  1. beacuse (2x-35)+75=180
  2. (2x-35)=105
  3. 2x=140
  4. x=70
3 0
3 years ago
Cellus<br> The figure below is a rhombus.<br> 630<br> x<br> y = <br> Enter
sleet_krkn [62]

Answer:

y=27

Step-by-step explanation:

6 0
2 years ago
A basket ball player makes 12 out of 15 free throws. What is his shooting percentage?
anyanavicka [17]

Answer:

80%

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Jim bought 20 rosebushes last week. the regular price is $5.00 per bush, but last week they were on sale at 2 for $8.50. how muc
    8·2 answers
  • Solve for x please need help need answer ASAP
    9·1 answer
  • Find the percent.<br><br> 9 is what percent of 16?
    15·2 answers
  • 20,24,28,32,... you can help me the way you do.​
    13·1 answer
  • A standard number cube is tossed x times. how many different outcomes are possible?
    12·1 answer
  • V= πr^2h explain with words step by step how you solve for “h” in the previous exercise
    8·1 answer
  • a tree 40 feet high casts a shadow 58 feet long. find the measure of the angle of elevation pf the sun.
    15·1 answer
  • What is the Area of the triangle
    6·2 answers
  • Someone Help me PLS ...
    5·1 answer
  • Whats The Awnser
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!