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3 years ago

Please help :)))))))))))

Mathematics

2 answers:

posledela3 years ago

8 0

Answer:

D. y = -x - 1

Step-by-step explanation:

We are using slope-intercept form for this problem.

Since this line is going from upper left to bottom right we know it will have a negative slope.

The line intersects the y-axis at -1, so the <em>b</em> value is -1.

The equation for this line is D. y = -x - 1

olya-2409 [2.1K]3 years ago

3 0

Answer:

Your answer is C and D

Step-by-step explanation:

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Write the equation for the perpendicular bisector of the given line segment.

Anon25 [30]

Answer:

$y=\frac{1}{3}x+\frac{5}{3}$

Step-by-step explanation:

Let

A(-5,5),B(-2,-4) ----> the given segment

step 1

Find the slope AB

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute the given values

$m=\frac{-4-5}{-2+5}$

$m=\frac{-9}{3}$

$m=-3$

step 2

we know that

If two lines are perpendicular, then their slopes are opposite reciprocal (the product of the slopes is equal to -1)

the slope of the perpendicular bisector is equal to

$m_1*m_2=-1$

we have

$m_1=-3$

substitute

$(-3)*m_2=-1$

$m_2=\frac{1}{3}$

step 3

Find the midpoint segment AB

A(-5,5),B(-2,-4)

The formula to calculate the midpoint between two points is equal to

$M(\frac{x1+x2}{2} ,\frac{y1+y2}{2})$

substitute the values

$M(\frac{-5-2}{2} ,\frac{5-4}{2})$

$M(-\frac{7}{2} ,\frac{1}{2})$

step 4

Find the equation of the line in point slope form

$y-y1=m(x-x1)$

we have

$m=\frac{1}{3}$

$M(-\frac{7}{2} ,\frac{1}{2})$

substitute

$y-\frac{1}{2}=\frac{1}{3}(x+\frac{7}{2})$

step 5

Convert to slope intercept form

$y=mx+b$

isolate the variable y

$y-\frac{1}{2}=\frac{1}{3}x+\frac{7}{6}$

$y=\frac{1}{3}x+\frac{7}{6}+\frac{1}{2}$

$y=\frac{1}{3}x+\frac{10}{6}$

simplify

$y=\frac{1}{3}x+\frac{5}{3}$

see the attached figure to better understand the problem

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4 years ago

Help please for both questions !

uysha [10]

Answer:

bro hounestly I'm just doing this to setup my profile I don't know the awnser sorry

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2 years ago

Lin and Diego both ran for 10 seconds, each at their own constant speed. Lin ran 40 meters and Diego ran 55 meters. 1. Who was m

Igoryamba

Answer:

Diego ran faster

Step-by-step explanation:

In the ten seconds, Diego ran 15 meters faster than Lin.

55 - 40 = 15

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3 years ago

Jeremiah makes 25% of the three-point shots he attempts. For a warm up, Jeremiah likes to shoot three-point

seropon [69]

Answer:

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Step-by-step explanation:

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3 years ago

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At 8 am the temperature is -3 degree,at 10 am the temperature is 1 .what is the difference in the temperature

sammy [17]

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