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3 years ago

What is the slope of the line that goes through the points (-4,1) and (4,-5)?

Mathematics

2 answers:

LekaFEV [45]3 years ago

6 0

Answer:

-4/3

Step-by-step explanation:

1. The slope formula is in the form y2-y1/x2-x1

2. Use one set of points as (x1, y1), and the other as (x2, y2).

3. Plug the points into the corresponding equation variables

4. Solve: (-4 - 4)/(1 -(-5)) = -8/6

-8/2 = -4, 6/2 = 3

-8/6 = -4/3

Galina-37 [17]3 years ago

6 0

Answer:

-3/4

Step-by-step explanation:

Use the slope formula to find the slope of the line. Let (-4,1) be (x1,y1) and (4,-5) be (x2,y2).

So, the slope of the line that goes through the points (-4,1) and (4,-5) is .

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1 year ago

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3 years ago

Read 2 more answers

The time between arrivals of taxis at a busy intersection is exponentially distributed with a mean of 10 minutes. (a) What is th

Sindrei [870]

Answer:

a) 0.0025

b) 0.9975

c) 23.03 minutes

d) 23.03 minutes

Step-by-step explanation:

Let X be the random variable that measures the time waited for a taxi.

If X is exponentially distributed with a mean of 10 minutes,then the probability that you have to wait more than t minutes is

$\large P(X>t) = e^{-t/10}$

1 hour = 60 minutes, so the probability that you wait longer than one hour is

$\large P(X>60)=e^{-6}=0.0025$

Due to the “memorylessness” of the exponential distribution, the probability that you have to wait 10 or less minutes after you have already waited for one hour, is the same as the probability that you have to wait 10 or less minutes

$\large P(X\leq 10)=1-e^{-6}=0.9975$