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Zarrin [17]
3 years ago
7

If the product of the two slopes of two lines equals -1, then the lines are ?

Mathematics
1 answer:
VladimirAG [237]3 years ago
7 0

\bf \stackrel{\textit{perpendicular lines have \underline{negative reciprocal} slopes}} {\stackrel{slope}{\cfrac{a}{b}}\qquad \qquad \qquad \stackrel{reciprocal}{\cfrac{b}{a}}\qquad \stackrel{negative~reciprocal}{-\cfrac{b}{a}}} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill \left( \cfrac{a}{b} \right)\left( -\cfrac{b}{a} \right)=-1~\hfill

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How do I draw and determine the equation of a trend line on a scatterplot
Nat2105 [25]

Step-by-step explanation:

Step 1: Draw your trend line.

You begin by drawing your trend line. You want your trend line to follow your data. You want to have roughly half your data above the line and the other half below the line, like this:

trend line equation

Step 2: Locate two points on the line.

Your next step is to locate two points on the trend line. Look carefully at your trend line and look for two easy to figure out points on the line. Ideally, these are points where the trend line crosses a clearly identifiable location.

For the trend line that we just drew, we can see these two easily identifiable points.

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We can easily identify these two points as (3, 3) and (12, 6).

Step 3: Plug these two points into the formula for slope.

The formula for slope is this one:

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We can label our first point as (x1,y1), and our second point as (x2,y2). So our x1 is 3, our y1 is 3, our x2 is 12, and our y2 is 6. Plugging these values into the equation for slope and evaluating, we get this:

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8 0
3 years ago
What decimal number is between 4.0 and 4.5?
dybincka [34]
The answer is
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8 0
3 years ago
How to divide 7 divided by 7/4
Mariulka [41]

Answer:

4

Step-by-step explanation:

7÷7/4

in these cases we multiply by the reciprocal

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7 0
3 years ago
Read 2 more answers
What are the steps to solving this?
Archy [21]

Answer:

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Step-by-step explanation:

The triangular pyramid volume formula resembles the volume formula for any other pyramid or cone:

V = A * H / 3

where:

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In other words: the volume of a triangular pyramid is one-third of the product of the base area and the pyramid's height.

8 x 6 / 2 to find area of base = 24

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192 / 3 = 64

Hope this makes sense. If you would like, I can l1nk to a very useful website, or I can explain it further.

- profparis

5 0
2 years ago
Which function has the same y-intercept as the function
Debora [2.8K]

Answer:

Number 3

Step-by-step explanation:

7 0
3 years ago
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