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mash [69]
3 years ago
8

given line passes through the points (-4, -3) and( 4, 1) what is the equation in point slope form of the line that's perpendicul

ar to the given line and passes through the point (-4,3)
Mathematics
2 answers:
Diano4ka-milaya [45]3 years ago
6 0

Answer:

y= -2x-5

Step-by-step explanation:

First find the gradient of the first line

m =  \frac{y2 - y1}{x2 - x1}

m=

\frac{1 -  - 3}{4 -  - 4}

m=

\frac{4}{8}

m=1/2

From this we can find the gradient of the perpendicular line, or the normal.

m1 × m2 = -1

Replace m1 with 1/2

1/2 × m2 = -1

m2= -2

Substitute values into

y-y1=m (x-x1)

y-3=-2 (x+4)

y-3=-2x -8

y=-2x-5

atroni [7]3 years ago
3 0

Answer:

y + 3= one- fourth (x +4

Step-by-step explanation:

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Y is 9 times as many as 4.
Sergio [31]

Answer:

36

Step-by-step explanation:

Basically it is = 9 x 4

Multiply the numbers

= 9 ⋅ 4

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Solution = 36

aka

y = 36

6 0
2 years ago
HELP PLEASE ASAP! Tell how you found 2k + 10! 20 points!
Ivan

Answer:

2(k+5)

Step-by-step explanation:

Factor 2k+10

2k+10

=2(k+5)

Answer:

2(k+5)

8 0
3 years ago
The manufacturer of Pepsi claims that its 2-liter bottles contain, on average, no more than 250 calories. A sample of 20 2-liter
Stels [109]

Answer:

Yes, Sample information does indicate that a 2-liter bottle of Pepsi contains more than 250 calories  

Step-by-step explanation:  

Null Hypothesis [H0] : u < 250  

Alternate Hypothesis [H1] : u > 250 {One Tail}  

t = (x' - u) / [ sd / √n ]  

= (255 - 250) / (5.6 / √20)  

5 / (5.6 /√20)  

= 3.99  

As t ie 3.99 > t value 1.65 ie for one tail 95% confidence level. So, we reject the null hypothesis & conclude that it contains more than 250 calories.  

4 0
3 years ago
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Answer:  Travis paid $8.05 per light and grace paid $6.8 per light so its grace

Step-by-step explanation:

5 0
2 years ago
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