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timofeeve [1]
3 years ago
7

Help please!!! which graph represents the function f(x)=4/x?

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
6 0

Answer:

Not the graph you attached to your question

Step-by-step explanation:

For sure not the graph you attached to your question, since although the general features at infinity (when x grows in absolute value) and the vertical asymptote at x=0 are not that different from the only graph you show, there are some important details that tell you this is not the correct graph:

For example, the graph of the function f(x) = 4/x for sure should show a value of "1" (one) when x is 4 :

f(4) = \frac{4}{4} = 1

It should also give a value of "-1" (negative one) when x is -4.

f(-4) = \frac{4}{-4} = -1

This is NOT true in the graph you attached to this question.

Please see the appropriate graph you should be looking for in the image I am attaching to this answer. And notice the value you should be able to extract from the graph when x equals 4 for example.

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What is the z-score for a patient who takes 7 days to recover? (choose the closest possibility.)
Kisachek [45]

Based on the time it took the patient to recover and the mean and standard deviation, the z-score is 1.5.

<h3>What is the z-score?</h3>

The z-score for this patient who takes 7 days to recover can be found as:

= (Time taken to recover - Mean) / Standard deviation

Solving for the z-score gives:

= (7 - 5.2) / 1.2

= 1.8 / 1.2

= 1.5

The first part of the question is:

The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.2 days and a standard deviation of 1.2 days.

Find out more on the z-score at brainly.com/question/25638875

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5 0
1 year ago
Slope intercept form of a line that has a slope of -3/4 and passes through (4, 3)
tia_tia [17]
<h3><u>Explanation</u></h3>
  • First Method

We have the given slope value and the coordinate point that the graph passes through.

y = mx + b

where m = slope and b = y-intercept. Substitute the value of slope in the equation.

y =  -  \frac{3}{4} x + b

We have the given coordinate point as well. After we substitute the slope, we substitute the coordinate point value in the equation.

3 =  -  \frac{3}{4} (4) + b \\

<u>Solve</u><u> </u><u>the</u><u> </u><u>equation</u><u> </u><u>for</u><u> </u><u>b-term</u>

3 =  - 3 + b \\ 3 + 3 = b \\ 6 = b

The value of b is 6. We substitute the value of b in the equation.

y =  -  \frac{3}{4} x + 6

  • Second Method

We can also use the Point-Slope form to solve the question.

y - y_1 = m(x - x_1)

Given the y1 and x1 = the coordinate point value.

Substitute the slope and coordinate point value in the point slope form.

y - 3 = -  \frac{3}{4} (x - 4)

<u>Simplify</u><u>/</u><u>Convert</u><u> </u><u>into</u><u> </u><u>Slope-intercept</u>

y =  -  \frac{3}{4} (x - 4) + 3 \\ y =  -  \frac{3}{4} x +  \frac{12}{4}  + 3 \\ y =  -  \frac{3}{4} x + 3 + 3 \\y =  -  \frac{3}{4} x + 6

<h3><u>Answer</u></h3>

<u>\large \boxed {y =  -  \frac{3}{4} x + 6}</u>

6 0
2 years ago
A dress is marked up 16 2/3 to a final price of 140. what is the original price
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163.38

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IrinaVladis [17]

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Step-by-step explanation:

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ANSWER AND SHOW WORK!!!! PLS AND IT'S GRADED​
mote1985 [20]

Answer:

the answer is a hope this helps you 4/5 because a proportional relationship. two quantities and it represented by a graph

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3 years ago
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