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3 years ago

Question 8 options:

Mathematics

1 answer:

prisoha [69]3 years ago

7 0

Answer:

Step-by-step explanation:

Based on what you have here as the slope we can set the slope formula equal to 34 using the points (0, 8) and (8, c) to solve for c, then use the points (0, 8) and (a, 5) to solve for a.

c first:

$\frac{c-8}{8-0}=34$ and

$\frac{c-8}{8}=34$ and

c - 8 = 272 s0

c = 280

For a:

$\frac{5-8}{a-0}=34$ and

$\frac{-3}{a}=34$ and

-34a = 3 so

$a=-\frac{3}{34}$

That seems a little weird, but when you plug those points into the slope formula to solve for the slope, it works out the way it should.

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Find the coordinates of the missing endpoint if m is the midpoint of ab. a(-9, -4) and m(-7, -2.5)

Julli [10]

Answer:

The coordinates of the point b are:

b(x₂, y₂) = (-5, -1)

Step-by-step explanation:

Given

As m is the midpoint, so

m(x, y) = m (-7, -2.5)

The other point a is given by

a(x₁, y₁) = a(-9, -4)

To determine

We need to determine the coordinates of the point b

= ?

Using the midpoint formula

$\left(x,\:y\right)=\left(\frac{x_2+x_1}{2},\:\:\frac{y_2+y_1}{2}\right)$

substituting (x, y) = (-7, -2.5), (x₁, y₁) = (-9, -4)

$\left(-7,\:-2.5\right)=\left(\frac{x_2+\left(-9\right)}{2},\:\:\frac{y_2+\left(-4\right)}{2}\right)$

Thus equvating,

Determining the x-coordinate of b

[x₂ + (-9)] / 2 = -7

x₂ + (-9) = -14

x₂ - 9 = -14

adding 9 to both sides

x₂ - 9 + 9 = -14 + 9

x₂ = -5

Determining the y-coordinate of b

[y₂ + (-4)] / 2 = -2.5

y₂ + (-4) = -2.5(2)

y₂ - 4 = -5

adding 4 to both sides

y₂ - 4 + 4 = -5 + 4

y₂ = -1

Therefore, the coordinates of the point b are:

b(x₂, y₂) = (-5, -1)

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Answer:

a) B

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Firdavs [7]

Answer:

Answer from the answer data to choose from

Factor completely

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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