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2 years ago

How do you find the point slope form for the points (2,7) and (-1,9)?

Mathematics

2 answers:

iris [78.8K]2 years ago

8 0

Answer:

y = -2/3 x + 25/3

Step-by-step explanation:

The slope = (y_2 - y_1) / (x_2 - x_1) = (9 - 7) / (-1 - 2) = -2/3.

Our equation needs to be in y = mx + b form.

We can plug in (2, 7) as our (x, y) and find b:

7 = -2/3 (2) + b

b = 7 + 4/3 = 25 / 3.

Therefore, our equation is y = -2/3 x + 25/3

brilliants [131]2 years ago

3 0

Use the Equation(in the picture) and plug in your variables to find m(slope)

$\frac{9-7}{-1-2} = \frac{-2}{3} = -0.67$

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Find the area of the triangle.

KengaRu [80]

Answer:

10 Square feet or square meter

Step-by-step explanation:

Area of a triangle = bh / 2

b represents the base which is 4

h represents the height which is 5

bh / 2 = 4 × 5 / 2

Area = 20 / 2

Area = 10

:. The Area of the triangle is 10 square feet or square meter

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2 years ago

A banana bread recipe that makes 444 loaves calls for 121212 bananas. If you are making 242424 loaves, how many bananas do you n

rjkz [21]

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3 years ago

Read 2 more answers

Which of the following angles can be trisected using only a compass and straightedge?

ZanzabumX [31]

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3 years ago

Find the polar equation of the conic with the focus at the pole, directrix x = -5, and eccentricity 2.

prohojiy [21]

Step-by-step explanation:

Given that,

Directrix, d= -5, and eccentricity, e = 2.

The polar equation of the conic is given by :

$r=\dfrac{ed}{1-e\cos\theta}$

Put all the values,

$r=\dfrac{-5\times 2}{1-2\cos\theta}\\\\=\dfrac{-10}{1-2\cos\theta}$

As e>1, it is a hyperbola. Hence, this is the required solution.

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2 years ago

1 2 3 4 5 6 7 8 9 10 Susan plans to use 120 feet of fencing to enclose a rectangular area for a garden. Which equation best mode

Troyanec [42]

Answer:

$Area = 60x - x^2$

Step-by-step explanation:

Given

$Perimeter = 120$

$Side\ 1 = x$

Required

The area of the garden

First, we calculate the length of the other side using:

$Perimeter = 2 *(Side\ 1 + Side\ 2)$

This gives:

$120 = 2 *(x + Side\ 2)$

Divide both sides by 2

$60 = x + Side\ 2$

Make Side 2 the subject

$Side\ 2 = 60 - x$

So, the area of the garden is:

$Area = Side\ 1 * Side\ 2$

$Area = x * (60 - x)$

Expand

$Area = 60x - x^2$

7 0

2 years ago