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Lera25 [3.4K]
3 years ago
5

What is the slope of the line do the point for me to?

Mathematics
1 answer:
larisa86 [58]3 years ago
6 0

Answer:

Step-by-step explanation:

we can see that the line goes thru the point (-1,2) and (4,-2) now to find slope we just find change in y over change in x

more visually:

(y1-y2)/(x1-x2)

so for the point (-1,2) let’s say

-1 = x1

and

2 = y1

and for the point (4,-2) let’s say

4 = x2

and

-2 = y2

to find slope we plug in the values to our slope equation and we get this:

(2-(-2))/( -1-4)

(2+2)/-5

4/-5

so slope is -4/5

because to get from (-1,2) to (-4,-2) you have to move down 4 and to the right 5

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2x-y=-1 in slope intercept form
AnnyKZ [126]

Answer:

y=-2x+1

Step-by-step explanation:

y=Mx+b is the slope formula. You want to move y over to the other side to get the equation equal to y

4 0
3 years ago
What is the vertex of g(x) = –3x2 + 18x + 2?
blsea [12.9K]

Answer:

(3,29)

Step-by-step explanation:

There is a formula that can be used to find the x-value of the vertex of the parabola. This formula is x=\frac{-b}{2a}

We have the function g(x)=-3x^2+18x+2

From this function, we can find that

a=-3\\b=18\\c=2

We can plug in our know values into the formula to get

x=\frac{-18}{2(-3)\\} \\x=\frac{-18}{-6} \\\\x=3

Then we can plug in our x-value to find the y-value of the vertex

g(3)=-3(3)^2+18(3)+2\\\\g(3)=-3(9)+54+2\\\\g(3)=-27+54+2\\\\g(3)=29

This means that the vertex would be (3,29)

6 0
3 years ago
A color printer prints 8 pages in 5 minutes. How many pages does it print per minute?
fenix001 [56]

Answer:

1.6 OR 8/5

(They are the same thing.)

6 0
3 years ago
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Day Care Tuition A random sample of 50 four-year-olds attending day care centers provided a yearly tuition average of $3987 and
olasank [31]

Answer:

We have to find the 90% confidence interval for the mean

                 Given sample size  

                        Sample mean  

Population standard deviation  

Here the confidence level is 90% then  

                                                  And  

The 90% confidence interval is  

Here  is the critical value at 0.05

From the tables  

Now the 90% confidence interval is =

                                                                                     =

                                                                                     =(3840.44, 4133.56)

Hence the 90% confidence interval for the mean is (3840.44, 4133.56)

5 0
3 years ago
One number is 4 more than another. The difference between their squares is 56. What are the numbers?
kompoz [17]

The answer is 7 and 11 :)


3 0
3 years ago
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