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3 years ago

Find the slope of the line passing through the points (-6,6) and (4,-7)

Mathematics

1 answer:

Alla [95]3 years ago

8 0

Answer:

m = -13/10

Step-by-step explanation:

Madison, imagine that you're moving from (-6, 6) to (4, -7) with interest in knowing how much x (the run) and y (the rise) change.

In the first instance, x increases by 10 from -6 and +4. Simultaneously, y decreases by 13 from 6 to -7.

Thus the slope is m = rise / run = m = -13/10

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Write the equation of a line in Slope Intercept Form that passes through (−2,5) and (3,15).

Inessa [10]

Answer:

$\displaystyle y = 2x + 9$

Step-by-step explanation:

First, find the rate of change [slope]:

$\displaystyle \frac{-y_1 + y_2}{-x_1 + x_2} = m \\ \\ \frac{-5 + 15}{2 + 3} = \frac{10}{5} = 2$

Then, plug the coordinates into the Slope-Intercept Formula instead of the Point-Slope Formula because since you get it done much faster that way. It does not matter which ordered pair you choose:

15 = 2[3] + b

$\displaystyle 9 = b \\ \\ y = 2x + 9$

_______________________________________________

5 = 2[−2] + b

−4

$\displaystyle 9 = b \\ \\ y = 2x + 9$

** You see? I told you it did not matter which ordered pair you choose because you will always get the exact same result.

I am joyous to assist you anytime.

8 0

3 years ago

Find the surface area of the cylinder. Use pi=3.

PolarNik [594]

Answer:

SA= 87.96

Step-by-step explanation:

SA= 2πrh+2πr2

SA= 2·π·2·5+2·π·22

SA= 87.96

7 0

3 years ago

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quentin has 18 unit cubes how many diffrent rectangular prisims can he build if he uses all of the cubes

tigry1 [53]

1.) 18 in. by 1 in. 2.) 18 in. by 1 in. 3.) 2 in. by 9 in. 4.) 9 in. by 2 in. 5) 6 in.by 3 in. 6.) 3 in. by 6 in.
There are 6 shapes. I hope this helped.

7 0

3 years ago

Which of these pairs of points defines a line with slope of 4? (help asap pls)

miv72 [106K]

I think the answer is C

6 0

3 years ago

Please help I don’t understand please

irinina [24]

Answer:

7.2

0.76

6.4

thats the answer

3 0

3 years ago

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