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3 years ago

Find the slope of the line that contains the following pairs of points (2,4) (0,8)

Mathematics

2 answers:

Zigmanuir [339]3 years ago

7 0

Answer:

The slope is -2

Step-by-step explanation:

The slope of a line is given by

m = (y2-y1)/(x2-x1)

= (8-4)/(0-2)

= 4/-2

= -2

OlgaM077 [116]3 years ago

5 0

Hi!

Answer:

-2

*The answer must have a NEGATIVE sign.*

Step-by-step explanation:

Slope formula:

↓

$Slope=\frac{Y_2-Y_1}{X_2-X_1}=\frac{RISE}{RUN}$

$\frac{8-4}{0-2}=\frac{4}{-2}=\frac{4/2}{-2/2}=\frac{2}{-1}=-2$

The slope is -2.

-2 is the correct answer.

Hope this helps!

Have a nice day! :)

-Charlie

Thank you for posting your question at brainly.

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murzikaleks [220]

Answer:

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Step-by-step explanation:

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3 years ago

Find sin(2x), cos(2x), and tan(2x) from the given information. tan(x) = − 1/2 , cos(x) > 0

vodomira [7]

Answer:

sin(2x) = -4/5
cos(2x) = 3/5
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Step-by-step explanation:

It may be easiest to start with tan(2x).

tan(2x) = 2tan(x)/(1 -tan(x)²)

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Then cosine can be found from ...

cos(2x) = 1/√(tan(2x)² +1) = 1/√((-4/3)²+1) = √(9/25)

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Sine can be found from these two:

sin(2x) = cos(2x)tan(2x) = (3/5)(-4/3)

sin(2x) = -4/5

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3 years ago