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astraxan [27]
4 years ago
9

Explain why the vertical line test is used to determine if a graph represents a function.

Mathematics
1 answer:
iogann1982 [59]4 years ago
5 0
The vertical line test is simply using a vertical line across the whole graph to see if it touches two points at the same time. This is used because a function can only create ONE output for every input. For example, you can't plug 2 into the function x^{2} and get two different answers, you'll only get one, 4. However, you can also plug in -2 to get 4. This is because two different inputs can have the same output, but one input CANNOT have two outputs. 
Therefore, if it fails the vertical line test, then it's not a function
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10/16 divided by 5/15!! Plz help plz plz plz plz
qaws [65]

Answer: 1 and 7/8

Step-by-step explanation: In this problem, we have 10/16 divided by 5/15. Dividing by a fraction is the same as multiplying by its reciprocal. In other words, we can change the division sign to multiplication and flip the second fraction.

So, 10/16 ÷ 5/15 can be rewritten as 10/16 × 15/5.

Now, we are simply multiplying fractions. To multiply fractions, we multiply across the numerators and multiply across the denominators.

(\frac{10}{16}) (\frac{5}{5}) = \frac{150}{80}

Since the fraction 150/8 is not in lowest terms, we need to divide both the numerator and denominator by 10 to get 15/8.

Since 15/8 is an improper fraction, we can change this to a mixed number by dividing the denominator into the numerator.

Image provided.

Therefore, 10/16 divided by 5/15 = 1 and 7/8.

8 0
3 years ago
2 Describe the solution set of y=8
Vedmedyk [2.9K]

Answer:

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7 0
3 years ago
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Mamont248 [21]
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3 0
3 years ago
A statewide real estate sales agency, Farm Associates, specializes in selling farm property in the state of Nebraska. Its record
givi [52]

Answer:

Test statistic = 1.818

Reject H0

Step-by-step explanation:

H0 : μ = 90

H1 : μ > 90

xbar = 94 ; s = 22 ; n = 100

The test statistic : (xbar - μ) ÷ (s/√(n))

Test statistic = (94 - 90) ÷ (22/√100)

Test statistic = 4 ÷ 2.2

T = 1.818

The critical value :

At α = 0.10

Degree of freedom = n - 1 = 100 - 1 = 99

Tcritical(0.10, 99) = 1.290

Decison region :

Reject H0 if Test statistic > |Tcritical |

1.818 > 1.290

We reject H0

8 0
3 years ago
1 3/4 x 4 1/6 what answers for this question on math watch
zzz [600]

Answer:

its gonna be 22.20

Step-by-step explanation:

Because you like to divide the first number and multiply it by the second

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3 years ago
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