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Allushta [10]
3 years ago
14

What is the equation of the line that passes through the points (2,-1) and (6,1)?

Mathematics
1 answer:
Ede4ka [16]3 years ago
3 0

The answer is y=1/2x-2

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What is the equation in point-slope form of the line passing through (1, 9) and (−1, 11)?
ololo11 [35]
Point slope form: 
y-y_1=m(x-x_1)

m=slope 
(x1,y1) 

First we need to find the slope using the slope formula:
\frac{y_2-y_1}{x_2-x_1} =slope

Given the two coordinates: 
<span>(1, 9) and (−1, 11)

Plug them into the slope formula: 
</span>\frac{11-9=2}{-1-1=-2} =slope
Simplify: 
\frac{2}{-2} =-1
<span>
Now we know that: 
m=-1  and the (x1,y1) would be </span><span>(1, 9)
</span>
Now we simply plug in the info: 
y-9=-(x-1)

Final answer: y − 9 = −(x − 1)
7 0
3 years ago
Given h(x) = 5 - 9x, find h(8).<br> ANSWER!!!
slamgirl [31]

Answer:

hi

Step-by-step explanation:

3 0
3 years ago
A study of the career paths of hotel general managers sent questionnaires to an SRS of 280 hotels belonging to major U.S. hotel
const2013 [10]

Answer and Step-by-step explanation:

we have the following data:

Point estimate = sample mean = \ bar x = 12.39

Population standard deviation = \ sigma = 3.7

Sample size = n = 177

a) the margin of error with a 90% confidence interval

α = 1 - 90%

alpha = 1 - 0.90 = 0.10

alpha / 2 = 0.05

Z \ alpha / 2 = Z0.05 = 1,645

Margin of error = E = Z \ alpha / 2 * (\ sigma / \ sqrtn)

we replace:

E = 1.645 * (3.7 / \ sqrt177)

Outcome:

E = 0.46

b) margin of error with a 99% confidence interval

α = 1-99%

alpha = 1 - 0.99 = 0.01

alpha / 2 = 0.005

Z \ alpha / 2 = Z0.005 = 2,576

Margin of error = E = Z \ alpha / 2 * (\ sigma / \ sqrtn)

we replace:

E = 2,576 * (3.7 / \ sqrt177)

Outcome:

E = 0.72

c) A larger confidence interval value will increase the margin of error.

6 0
3 years ago
-(-2) <br> ...................................................
stepladder [879]

the 2 negatives get rid of eachother so its 2

2

4 0
3 years ago
Solve for x. <br><br> x + 8 = -15
anygoal [31]
1. Subtract 8 from both sides
2. Simplify to get x= -23

5 0
3 years ago
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