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4 years ago

Which equation could represent the relationship shown in the scatter plot?

Mathematics

2 answers:

KonstantinChe [14]4 years ago

8 0

Choice D : look at where you think the line would be if it followed the direction of the data so that about half of the points fell above the line and half below. The two most important things to note are the slope of the line and y intercept.
This is a negative relationship as the line falls as you read it from left to right. That eliminates choice C. Next, it appears the line of best fit would have a y intercept around 10 on the y axis and then fall down and to the right cutting the data. Note that choices A and B have y intercepts that don't make sense for the data. Choice D does have a y intercept of 10 and a negative slope.

svet-max [94.6K]4 years ago

3 0

Answer: D.y=-3/4x+10

Step-by-step explanation:

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The table below shows the total cost for purchasing a certain number of equally-priced concert tickets.Total cost (in dollars) |

olga nikolaevna [1]

To find an equation to describe the relationship between t and c you:

1. Find what is the dependent variable and the independent variable

In this case the total cost of the tickets depend of the number of tickets. Then:

Dependent variable is C

Independent variable is T

-----------------------------------------------------------

You can see in the table that the difference between the cost of the tickects is 165 for every 3 tickets. you find this by substracting the data in every column, as follow:

Then, the equation will be a lineal equation with a slope of:

$m=\frac{165}{3}=55$

You use a point of the lineal relationship to find the equation:

(2,110) t1=2 c1= 110

You use the next formula:

$y=mx+b$

You replace the coordinates of the point and find the value of b:

$110=55(2)+b$ $b=110-110=0$

The equation is: $c=55t$

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1 year ago

Classify the following triangle as acute, obtuse, or right

vekshin1

The answer is Acute

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3 years ago

Read 2 more answers

What is the conversion 12km to inches

nordsb [41]

Your answer is 472,441 inches

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3 years ago

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Math when is the sum of two negative mixed numbers an integer

FrozenT [24]

The short answer is: when their fractions add up to full integers.

For examples, two halves make up a whole, or

$\frac{1}{2} + \frac{1}{2}=1$

so the mixed numbers with those will add up to full integers:

$-12\frac{1}{2} + (-3\frac{1}{2})=(-(12+3+1)=-16$

but if they don't add up to an interger, the whole sum won't be an integer:

$-12\frac{3}{4} + (-3\frac{3}{4})=(-(12+3+1\frac{1}{2})=-16\frac{1}{2}$

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3 years ago

What is the value of e^ln7 x1<br> 7e<br> 7x<br> 7

stepladder [879]

Answer:

Step-by-step explanation:

Assuming your expression is :

$e^{\ln 7x}$