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vfiekz [6]
2 years ago
15

which equation is the point-slope equation of the line that passes through the points (-2,-1) and (7,-4)?

Mathematics
1 answer:
zvonat [6]2 years ago
6 0

Answer:

B (for question 7)

Step-by-step explanation:

To find the slope, we use the equation m=\frac{y_{2} -y_{1} }{x_{2} -x_{1} }.

m = (-4+1)/(7+2) = -3/9 = -1/3

Since B is the only option that would give a slope of -1/3, B must be the answer.

(you can use this same method for question 8)

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Which expression represents 43 minus the sum of 16 and 11
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2 years ago
Willis has noticed that when time has been one of the variables analyzed by a scatterplot he has looked at, it has always been t
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It invalidates his hypothesis because it is possible for the time a trip takes to depend on the distance that is traveled during the trip.

Option C is the right answer.

The missing graph has been attached with the answer.

<h3>What is a Scatter Plot ?</h3>

These are Cartesian Points and it represents relationship between two variables.

It is given that

Will's Hypothesis is time can never be a dependent variable.

Although from the graph plotted it can be seen that the time is dependent on distance travelled and

the in a scatter plot , the dependent variable is plotted on y axis and here the time is plotted on y axis ,

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Option C is the right answer.

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