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erastova [34]
2 years ago
12

Slope of (7, -2) and (2, -6)

Mathematics
2 answers:
GREYUIT [131]2 years ago
5 0

Answer:

\boxed{\sf{m=\frac{4}{5}}}

Step-by-step explanation:

In order to solve this problem, we will use the slope.

Slope:

\sf\dfrac{Y_2-Y_1}{x_2-x_1}=\dfrac{rise}{run}

y2=(-6)

y1=(-2)

x2=2

x1=7

Solve the problem by rewriting it down.

\sf{\dfrac{(-6)-(-2)}{2-7} }=\dfrac{(-6)+2}{2-7}=\boxed{\dfrac{4}{5} }

<u>m=4/5</u>

Therefore, the slope is 4/5.

I hope this helps! Feel free to correct me if I am wrong.

Stells [14]2 years ago
4 0

Answer:

it's -8/5 because you subtract y2 from y1 and x2 from x1

Step-by-step explanation:

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Find the equation of the line that passes through the point (−3, −4) and is parallel to the line that passes through the points
Dimas [21]

Answer:

y = -\frac{1}{3}x - 5

Step-by-step explanation:

To write the equation of a line use the point slope formula y - y_1 = m(x-x_1). Find m by using the slope formula with the points.

m = \frac{y_2-y_1}{x_2-x_1} = \frac{1--3}{-5-7} =\frac{4}{-12} =-\frac{1}{3}

Since the line is parallel, it will have the same slope.

Substitute m = -1/3 and (-3,-4).

y --4 = -\frac{1}{3}(x --3)\\y + 4 = -\frac{1}{3}(x+3)\\y +4 = -\frac{1}{3}x - 1\\y = -\frac{1}{3}x - 5

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3 years ago
1/4 + 3 = ??<br> What’s the answer??
murzikaleks [220]

Answer:

3.25

Step-by-step explanation:

divide then add 3

5 0
2 years ago
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mash [69]

Answer:

w < -7

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6 0
2 years ago
Find the possible value or values of y in the quadratic equation 4 – 4y – y 2 = 0. A. y = –3, y = –1 B. y = 2 C. y = –2 + 2√ 2,
xz_007 [3.2K]
  4 - 4y - y² = 0
-y² - 4y + 4 = 0
y = -(-4) ± √((-4)² - 4(4)(-1))
                    2(-1)
y = 4 ± √(16 + 16)
               -2
y = 4 ± √(32)
          -2
y = 4 ± 4√(2)
         -2
y = 4 + 4√(2)    or    y = 4 - 4√(2)
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8 0
3 years ago
Two ships leave a harbor at the same time. One ship travels on a bearing Upper S 14 degrees Upper W at 15 miles per hour. The ot
jekas [21]

Answer:

69.94 miles

Step-by-step explanation:

The distance d₁ the first ship moves after 3 hours is 3 hours × 15 miles per hours = 45 miles

The distance d₂ the second ship moves after 3 hours is 3 hours × 12 miles per hours = 36 miles.

The angle the first ship's direction makes in the North-East direction is 90° - 75° = 15°

The angle the second ship's direction makes in the South-West direction  = 14°

The distance moved by the two ships form the side of a triangle. The angle,  θ between the two ship directions is 14° + 90° + 15° = 119°

Using the cosine rule, we find the distance d between the two ships

d = √(d₁² + d₂² -2d₁d₂cosθ)

= √(45² + 36² -2×45×36cos119°)

= √(2025 + 1296- (-1570.78))

= √(3321 + 1570.78)

= √4891.78

= 69.94 miles

4 0
3 years ago
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