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frutty [35]
3 years ago
12

Which relation does not represent a function? A) a vertical line B) y = 5 9 x - 3 C) a horizontal line D) {(1, 7), (3,7), (5, 7)

, (7,7)}
Mathematics
2 answers:
RSB [31]3 years ago
7 0

Answer:

it is a i did it in usa test prep

Step-by-step explanation:

Alisiya [41]3 years ago
4 0

Answer:

A) a vertical line does not represent a function.

Step-by-step explanation:

For a relation to be a function for each value of x there must be only one value of y. In other words a function is one in which each value in the domain set corresponds to only one value in the range set.

Let us check for this condition in the give choices:

A) a vertical line

A vertical line is given as x=a which meas it is parallel to y-axis and has infinite number of y values for a single x value.

So, its Not a function

B) y=\frac{5}{9}x-3

For the given equation, on plugging in some x value will give a single y value.

So, its a Function

C) a horizontal line

A horizontal line is given as y=a which meas it is parallel to x-axis and has infinite number of x values giving a single y value.

So, its a Function

D) {(1, 7), (3,7), (5, 7), (7,7)}

For the given set for different x valuesthere is only one y value.

So, its a Function

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Is this a multiple choice?

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A research team is testing whether a fuel aditive increases a car's gas mileage. The maker of the additive claims that the addit
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Answer:

Yes  there is sufficient evidence to  reject the company's evidence

Step-by-step explanation:

From the question we are told that  

   The sample size is  n =  25

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The null hypothesis is  H_o : \mu = 6 \ mpg

The alternative hypothesis is  H_a :  \mu \ne 6

 Generally the p-value is mathematically evaluated as  

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From the z table  the area under the normal curve to the left corresponding to    -1.94  is

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5 0
3 years ago
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3

Step-by-step explanation:

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</span>
= 150:210

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