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
sashaice [31]
3 years ago
10

1)According to the table, is the exam grade a function of the number of hours spent studying?

Mathematics
2 answers:
telo118 [61]3 years ago
5 0

Answer:  The correct options are (1). D, (2). B.

Step-by-step explanation:  The explanations are as follows:

(1) We are to check whether the exam grade is a function of the hours spent studying according to the table.

Let, 'x' represents the number of hours spent studying  and 'f(x)' be the corresponding exam grade.

Then, according to the table, we have

f(1) = 78,  f(2) = 80,  f(3) = 78,  f(3) = 82,  f(4) = 84  and  f(5) = 86.

We know that a function cannot have two different output values for a single input value.

Here, f(3) = 78, 82.

So, for input value x = 3, there are two output values f(x) = 78, 82.

Therefore, the exam grade is not a function of the number of hours spent studying because the input value of 3 hours has 2 different output values of 78 and 82.

Thus, option (D) is correct.

(2) We are to select the set of ordered pairs does NOT represent a function.

Option (A) is (0, 1), (2, 2), (4, 8), (-2, 7), (5, 8).

Here, each input value corresponds to one and only one output value, so the given set of ordered pairs represents a function.

Option (B) is  (0, 1), (2, 2), (4, 8), (2, 7), (5, 8), (7, 9).

Here, input value '2' corresponds to two different output values '2' and '7', so the given set of ordered pairs does NOT represent a function.

Option (C) is (-3, 6), (2, 7), (0, 5), (1, 5), (4, 9), (5, 4).

Here, each input value corresponds to one and only one output value, so the given set of ordered pairs represents a function.

Option (D) is  (-4, 2), (-3, 2), (-2, 2), (-1, 2), (0, 2), (1, 2) .

Here, each input value corresponds to one and only one output value, so the given set of ordered pairs represents a function.

Thus, correct option is (B).

The correct options are (1). D, (2). B.

zloy xaker [14]3 years ago
4 0

For #2, B is not a function because there are two outputs for 2. In order to be a function there must only be one output for every input.

I believe the answer to #1 is D for the same reason.

You might be interested in
Given the following exponential function identify whether the change represents growth or decay and determine the percentage rat
kotegsom [21]
Y=g474xibe it’s that because had more answer to the q
5 0
3 years ago
Y=-16t^2+8t
disa [49]

Answer:

1/4th of a second, or .25 seconds

Step-by-step explanation:

graphed it.

3 0
2 years ago
In a college library there are 4 times as many nonfiction books as fiction books. How many times the number of nonfiction books
balu736 [363]
Four? Isn't it stated in the question? Unless I am assuming wrong. 
8 0
2 years ago
Read 2 more answers
How many terms are in the expression <br> 5x^3-8x^2y+4xy-4
bazaltina [42]

Answer:

<h2>4 terms</h2>

Step-by-step explanation:

Term 1: 5x^3

Term 2: 8x^2y

Term 3: 4xy

Term 4: 4

8 0
3 years ago
The graph shows a function. Is the function linker or non linear?
zloy xaker [14]

Answer:

It is linear since it is a straight line.

8 0
2 years ago
Other questions:
  • Jacob has 20 marbles 4 red 6 blue 2 green and 8 yellow. What’s the probability he will pull a red first then a green marble?
    8·2 answers
  • What is 23 x 23 and explain your answer
    7·2 answers
  • What is the value g(-3) when g(x) = 2x + 1? a.) 7 b.) -5 c.) 5 d.) -6
    6·1 answer
  • What is an equivalent fraction for 6
    11·1 answer
  • Plz help for 25pnts​
    13·2 answers
  • Blocking in experimental design is useful because it:
    15·2 answers
  • How do you convert a fraction to a decimal?​
    8·1 answer
  • A worker in a silver mine descends 51 feet. Use an integer to represent the change in the​ worker's position.
    14·2 answers
  • Hannah went to the school store to buy supplies and spent $16. She bought four more pencils than pens and two fewer erasers than
    11·1 answer
  • how many liters of a 30% antifreeze solution need to be added to 10 L of a 57% antifreeze solution to get 50% antifreeze solutio
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!