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3 years ago

14

What type of association and correlation are shown by the scatterplot? On a graph, points are grouped closely together and incre

ase. linear association, positive correlation linear association, negative correlation nonlinear association, strong correlation nonlinear association, weak correlation

2 answers:

Oliga [24]3 years ago

8 0

Answer:

Linear association and positive correlation, or a.

Step-by-step explanation:

The dots appear to go up, giving the positive appearance, and the dots are in a linear shape, hence the linear association.

Annette [7]3 years ago

6 0

Answer:

A) Linear association, positive correlation

Step-by-step explanation:

I took the test lol >w<

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you are purchasing a lunch the salt cost 13 quarters and the drink cost $14 you buy a cookie with nickels the total cost of the

madam [21]

The cookie was 51 cent beacsue they 13 quarters add up to $4 and then he but a drink for 13 cent. add that and you get $4.39 then you subtract that from. the $4.90

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4 years ago

David had 80 dollars from washing cars

Tomtit [17]

Answer:

It cost 30$

Step-by-step explanation:

Since 50% is 1/2 we put 80/2

so we have 40

25% is 1/4 we put 40/4=10 40-10=30

so the answer is 30

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3 years ago

SOMEBODY PLEASE HELP ME it’s due at 11:59

lapo4ka [179]

Answer:

c

Step-by-step explanation:

given: miles traveled and cost

to find: which one is correct

solution:

miles traveled =25

And cost =80

80/25 = 3.2

similarity all $3.20 cost increase

7 0

3 years ago

Maggie only wore sandals tracker on two of the days that she trained so from her fitness trackers she verified that on the third

KIM [24]

We know form our problem that the third day she biked 20 miles, so we have the point (3,20). We also know that <span>on the eighth day she biked 35 miles, so our second point is (8,35).

To relate our two point we are going to use the slope formula: </span> $m= \frac{x_{2}-x_{1}}{y_{2}-y_{1}}$
We can infer form our points that $x_{1}=3$ , $y_{1}=20$ , $x_{2}=8$ , and $y_{2}=35$ . so lets replace those values in our slope formula:
$m= \frac{35-20}{8-3}$
$m= \frac{15}{5}$
$m=3$

Now that we have the slope, we can use the point-slope formula <span>determine the equation of the line that best fit the set for Maggie’s data.
Point-slope formula: </span> $y-y_{1}=m(x-x_{1})$
$y-20=3(x-3)$
$y-20=3x-9$
$y=3x+11$

We can conclude that the equation of the line that best fit the set for Maggie’s data is $y=3x+11$ .

3 0

3 years ago

Find the intersection points of the linear and quadratic functions shown below f(x)=2x-5 g(x)= x2+2x-21

Mice21 [21]

Answer:

$(-4,-13)$ and $(4,3)$ the intersection points.

Step-by-step explanation:

Intersection point of two functions is a common point which satisfies both the functions.

Given functions are,

$f(x)=2x-5$

$g(x)=x^2+2x-21$

For a common point of these functions,

$f(x)=g(x)$

$2x-5=x^2+2x-21$

$-5=x^2-21$

$0=x^2-16$

$x^2=16$

$x=-4,4$

For $x=-4$ ,

$f(-4)=g(-4)=2(-4)-5$

$=-13$

For $x=4$ ,

$f(4)=g(4)=2(4)-5$

$=3$

Therefore, $(-4,-13)$ and $(4,3)$ the intersection points.

3 0

3 years ago