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4 years ago

I just want to check my answer, what is the slope of (-19, -6), (15,16)?

1 answer:

galina1969 [7]4 years ago

7 0

$slope=\frac{y_2-y_1}{x_2-x_1}\\\\ 
(x_1,y_1)=(-19,-6)\\ 
(x_2,y_2)=(15,16)\\\\
 slope=\frac{16+6}{15+19}=\frac{22}{34}=\frac{11}{17}\\\\
Slope\ is\ equal\ to\ \frac{11}{17}.
$

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What is an equation of the line that passes through the points of (0,-4) and (-4,6)

dusya [7]

Answer:

y = -5/2x - 4

Step-by-step explanation:

(0,-4) and (-4,6)

Slope:

m=(y2-y1)/(x2-x1)

m=(6+4)/(-4-0)

m=10/-4

m= -5/2

Slope-intercept:

y - y1 = m(x - x1)

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y = -5/2x - 4

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3 years ago

Factor completely 4x2 − 8x + 4.

olga nikolaevna [1]

Given :- 

4x² - 8x - 4 .

To Find :- 

To find the factorised form .

Answer :- 

Taking the given expression,

→ 4x² - 8x + 4

→ 4x² - 4x -4x + 4

→ 4x ( x - 1 ) -4( x -1)

→ (4x - 4)(x-1)

Hence the required answer is (4x - 4)( x - 1) .

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3 years ago

If an object moving at 1 mile/hour accelerates 1 mile/hour for every meter it travels, how fast will it be travelling in half of

d1i1m1o1n [39]

Answer:

Speed = 0.0003miles/hr

Step-by-step explanation:

Speed of object = 1 mile/hour

For every meter it travels, its acceleration increases by 1 mile/hour

∆Distance = increase in distance

∆speed = 1 meter

The speed and the distance are constant

Speed = distance/time

Time = distance/speed = 1meter/(1 miles/hr)

Convert meter to miles

1609.34 meters = 1mile

1meter = (1meter × 1mile)/(1609.34 meters)

1 meter = (1/1609.34)miles

Time = distance/speed = (1/1609.34)miles/(1 miles/hr)

Time = (1/1609.34)hr

We are to determine the speed the object would be travelling in half of an hour?

In 1hr, it travels (1/1609.34)miles

In ½hr, it travels = (1/1609.34)(½)hr

Speed = 0.0003miles/hr

It will be travelling 0.0003miles/hr in half of an hour

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3 years ago

The Orlando Magic scored 124 points in their last basketball game. If they score the same amount of points in in the next 28 gam

UkoKoshka [18]

Answer:

3,472

Step-by-step explanation:

124*28=3,472

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3 years ago

Read 2 more answers

does this data represent a direct variation or an inverse variation? x6 y 9, x 8 y 12, x 12 y 18, x 20 y 30

Karo-lina-s [1.5K]

Answer:

it is a direct variation because k is proportionally constant

Step-by-step explanation:

direct variation is y=k.x

inverse variation is k=y.x or y=k/x

6/9 = 2/3

8/12=2/3

12/18=2/3

20/30=2/3

i even add a graph for you

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4 years ago