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3 years ago

The slope of the line is -5. Which of the following is the point slope form of the line?

Mathematics

2 answers:

tester [92]3 years ago

5 0

B is the answer for your question

Alika [10]3 years ago

5 0

Answer:

The correct option is B.

Step-by-step explanation:

If a line passes though a point $(x_1,y_1)$ with slope m, then the point slope form of the line is

$y-y_1=m(x-x_1)$

It is given that the slope of line is -5.

From the given figure it is clear that the line passes through the point (2,-7).

The point slope form of the given line is

$y-(-7)=(-5)(x-2)$

$y+7=-5(x-2)$

The point slope from of the given line is y+7=-5(x-2). Therefore the correct option is B.

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Suppose P(A)=0.9, P(B)=0.4 and P(B|A)=0.2. What is P(A|B)?

Leokris [45]

The answer is 0.45

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

Work Shown:

P(B|A) = P(B and A)/P(A)
0.2 = P(B and A)/0.9
0.2*0.9 = P(B and A)
0.18 = P(B and A)
P(B and A) = 0.18
P(A and B) = 0.18

P(A|B) = P(A and B)/P(B)
P(A|B) = 0.18/0.4
P(A|B) = 0.45

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