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3 years ago

Find the slope of the line in simplest form.

Mathematics

1 answer:

N76 [4]3 years ago

7 0

Answer:

$-\frac{3}{2}$

Step-by-step explanation:

To find the slope of the given line, slope is the rise divided by the run of a line.

Slope = $\frac{y_{2} - y_{1} }{x_{2} - x_{1} }$

Picking points (4, 18) and (8, 12)

Now;

x₁ = 4

y₁ = 18

x₂ = 8

y₂ = 12

Slope = $\frac{12 - 18}{8-4}$ = $-\frac{6}{4}$ = $-\frac{3}{2}$

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describe whether the association in the scatter plot below is linear or non-linear and positive or negative.

zhannawk [14.2K]

The scatter plot describes the relationship as a positive, non-linear association. Hence option B is correct.

<h3>What is a scatter plot?</h3>

A scatter plot is a plot mathematical chart or graph that depicts the relationships by the use of dots and shows the two numeric variables.

The dots are positioned on each horizontal and vertical value for an individual. They are used for observing the relationship between the variables. The graph shows are positive but nonlinear association.

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2 years ago

The slope of the line

xxTIMURxx [149]

~5.83

a^2 + b^2 = c^2

6 0

3 years ago

Read 2 more answers

A survey of 85 families showed that 36 owned at least one DVD player. Find the 99% confidence interval estimate of the true prop

attashe74 [19]

Answer:

$0.424 - 2.58\sqrt{\frac{0.424(1-0.424)}{85}}=0.286$

$0.424 + 2.58\sqrt{\frac{0.424(1-0.424)}{85}}=0.562$

The 99% confidence interval would be given by (0.286;0.562)

Step-by-step explanation:

Information given:

$X= 36$ represent the families owned at least one DVD player

$n= 85$ represent the total number of families

$\hat p=\frac{36}{85}= 0.424$ represent the estimated proportion of families owned at least one DVD player

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 99% of confidence, our significance level would be given by $\alpha=1-0.99=0.01$ and $\alpha/2 =0.05$ . And the critical value would be given by: