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Rzqust [24]
3 years ago
8

Part A: A graph passes through the points (0, 4), (1, 8), and (2, 10). Does this graph represent a linear function or a non-line

ar function? Explain your answer in words.
Part B: Write one example of a linear function and one example of a non-linear function. (Use x and y as the variables) (10 points)
Mathematics
2 answers:
IRISSAK [1]3 years ago
4 0
Part A:  In (0,4) and (1,8), as x increases from 0 to 1, y increases from 4 to 8.  The slope of the line connecting these 2 pts. is (8-4) / (1-0), or 4.  Now do the same thing for the 2 pts (1,8) and (2, 10).  You will find that the slope in the 2nd case is different.  Thus, the 3 given pts do NOT lie on a straight line.  Function is non-linear.

Part B:  an example of a non-linear function would be y = 2x^2 - 5.  You can tell immediately from that exponent, 2, that this function is non linear.

An ex. of a linear function would include x to the 1st power only:  y = 3x - 7.
Artemon [7]3 years ago
4 0

Answer:  This is what i got hope it helps

Part A:  In (0,4) and (1,8), as x increases from 0 to 1, y increases from 4 to 8.  The slope of the line connecting these 2 points. is (8-4) / (1-0), or 4.  Now do the same thing for the 2 points (1,8) and (2, 10).  You will find that the slope in the 2nd case is different.  Thus, the 3 given points  do NOT lie on a straight line.  Function is non-linear.

Part B:  an example of a non-linear function would be y = 2x^2 - 5.  You can tell that the exponent, 2, that this function is non linear.

Step-by-step explanation:

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ladessa [460]

Answer:

n(A \cup \: B) = n(A) + n(B) - n(A \cap \: B)\\ = 9 + 11 - 5 = 15 \\

4 0
2 years ago
Luis earns $30 washing 3 dogs. At this rate, how many dogs did Luis wash to earn $70?​
Nadusha1986 [10]

Answer:

7 dogs

Step-by-step explanation:

$30/3 = how many dollars per dog

$10 per dog he washes

$70/$10 = 7, he washes 7 dogs

4 0
3 years ago
Read 2 more answers
The spray from a lawn sprinkler makes a circle 40 feel in radius. What are the approximate diameter, circumference, and area of
Fittoniya [83]
Our first step is to figure out what formulas are needed for diameter, circumference, and area of a circle.

Diameter is simply twice the size of the radius so:
2 * radius = 2 * 40 feet = 80 ft.

Circumference = 2 * pi * radius = 80 ft * pi 
If we say that pi = 3.14, then:
circumference = 251.2 ft.

Area = pi * radius^2 = pi * 1600 ft^2
Once again, if we assert pi = 3.14, then:
area = 3.14 * 1600 ft^2 = 5024 ft^2.
3 0
3 years ago
A band sold out 4 of its last 20 shows. What is the experimental probability that the band's
kykrilka [37]

Answer:

\frac{1}{5} probability

Step-by-step explanation:

P(Sold Out)= \frac{4}{20}

\frac{4}{20} =\frac{1}{5}

So since the experimental probability is the number of times an event occurs out of the total number of trials...

The answer to "what is the experimental probability that the band's  next show will be sold out?" Is \frac{1}{5}!!!

Hope this helped you!

Have a nice evening!

8 0
3 years ago
50 POINTS!!!
Goryan [66]

9514 1404 393

Answer:

  • f(x) = x
  • g(x) = -2x+1
  • f(x) -(-g(x)) = -x+1
  • f(x) +g(x) = -x+1
  • f(x)-(-g(x)) = (f+g)(x) is true for all functions f and g, linear or not

Step-by-step explanation:

We can define a couple of linear functions as ...

  f(x) = x

  g(x) = -2x+1

Then the reflected function -g(x) is ...

  -g(x) = -(-2x +1) = 2x -1

And the difference from f(x) is ...

  f(x) -(-g(x)) = x -(2x -1) = -x +1 . . . . f(x) -(-g(x))

We want to compare that to the sum of the functions:

  f(x) +g(x) = x +(-2x +1) = -x +1 . . . . f(x) +g(x)

The two versions of the function expression have the same value.

These results are <em>a property of addition</em>, so do not depend on the nature of f(x) or g(x). They will hold for every function.

3 0
3 years ago
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