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
Ivan
3 years ago
7

When given a graph, the vertical line test can be used to determine functionality. Describe the vertical line test and explain t

he reasons why a graph would, or would not, represent a function.
Mathematics
2 answers:
yulyashka [42]3 years ago
5 0

Answer:

When given a graph, the vertical line test can be used to determine functionality. The vertical line test would represent a function if no more than one point of the graph of a relation, this shows that only one output value for each input value. If this doesn't apply or more than one point is on the line then it would not represent a function.

Step-by-step explanation:

Draw vertical lines to intersect on a graph.

The relation is a function if there’s only one point of intersection on a graph.

The relation is not a function if there’s more than one point of intersection on a graph.

The vertical line test is used to determine if each input has exactly one output.

diamong [38]3 years ago
3 0

Answer:

The vertical line test is a way for you to see if a graph represents a function. It allows you to identify if any x values have more than one y value.

A graph would be a function if every input (x) has exactly one output (y). A graph would not be a function if an input (x) has more than one output (y).

Step-by-step explanation:

In a function, every input within the domain of the function must have exactly one output. If the graph has an input that has more than one output, then it is not a function. The vertical line test is what allows you to see if a graph is a function or not.

You might be interested in
A student has passed 70 percent of the 20 quizzes he has written so far successfully. If this student takes 60 quizzes during th
Ne4ueva [31]
I think the answer is52.4
4 0
3 years ago
Which statement best describes the function below? \f(x)=2x^2-3x+1
goldfiish [28.3K]

Answer:

what are the two answers?

4 0
3 years ago
A new screening test for Lyme disease is developed for use in the general population. The sensitivity and specificity of the new
Anit [1.1K]

Answer:

predictive value of a positive test = 18.18%

predictive value of a negative test = 94.03%

Step-by-step explanation:

Sensitivity = 60% = 0.6

Specificity = 70% = 0.7

Let True Positive = TP

True Negative = TN

False Negative = FN

Sensitivity = \frac{TP}{TP + FN} \\0.6 = \frac{TP}{TP + FN} \\0.6TP + 0.6FN = TP\\0.4TP = 0.6FN\\TP = 1.5 FN

Specificity = \frac{TN}{TN + FP} \\0.7 = \frac{TN}{TN + FP} \\0.7TN + 0.7FP = TN\\0.7FP = 0.3 TN\\TN  = 7/3 FP

Prevalence = 10% = 0.1

Three hundred people are screened, T_{total} = 300

Total number of people having the disease, T_{disease} = ?

Prevalence = \frac{T_{disease} }{T_{total} } \\0.1 =  \frac{T_{disease} }{300 }\\T_{disease} = 30

T_{disease} = TP + FN\\30 = TP + FN

But TP = 1.5 FN

30 = 1.5 FN + FN

30 = 2.5 FN

FN = 30/2.5

FN = 12

TP = 1.5 FN = 1.5 * 12

TP = 18

FP + TN = T_{total} - T_{disease} \\FP + TN = 300 - 30\\FP + TN = 270\\FP + \frac{7}{3} FP = 270\\\frac{10}{3} FP = 270\\FP = 27 * 3\\FP = 81

81 + TN = 270

TN = 189

To calculate the Predictive value of positive test (PPT)

PPT = \frac{TP}{TP + FP} * 100\\PPT = \frac{18}{18+81} * 100\\PPT = \frac{18}{99} * 100\\PPT = 18.18 \%

To calculate the Predictive value of negative test (PNT)

PPT = \frac{TN}{FN + TN} * 100\\PPT = \frac{189}{189+12} * 100\\PPT = \frac{189}{201} * 100\\PPT = 94.03 \%

7 0
3 years ago
Solve for x: 8x-5= 6x + 1
Romashka-Z-Leto [24]

Step-by-step explanation:

8x-5= 6x + 1

8x - 6x = 1+5

2x = 6

x= 2/6 = 1/3

x= 0.333

6 0
3 years ago
Isabel's car gets 33.5 miles per gallon. Her gas tank holds 15.1 gallons of gas. How many miles can Isabel drive on a full tank
Archy [21]

It will be 505.85.

Because 33.5 × 15.1 is 505.85.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Please answer this correctly
    15·2 answers
  • Where does each answer belong in the boxes?? Right answers only, help please!! :))
    5·1 answer
  • A truck's distance from a warehouse, d , (measured in miles) is modeled by the formula d = t 2 + 70 t where t represents the num
    7·1 answer
  • Expand 2x(3x - 5)<br>again, please I'm struggling ​
    11·2 answers
  • Find the value of x. HURRY PLEASE
    6·2 answers
  • Which expression is equivalent to ((3xy^-5)^3/(x^-2y^2)^4)^-2
    13·2 answers
  • Adam wanted to play his video games. His mother told him that he needed to finish his homework, clean out the dishwasher, and cl
    12·1 answer
  • I am making this question for emmatannerfns to chat with me
    13·2 answers
  • tim's current bank balance is $75. he adds a charge of -$31 when he buys lunch for him and his friend. write and expression and
    10·1 answer
  • What is the area of this rectangle
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!