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4 years ago

Determining the slope A(-1 ,3) B (-2 , 5 )

1 answer:

6 0

A(-1,3), B(-2,5)

Slope equation : (y₂-y₁) / (x₂-x₁)

Plug in the values into the equation.

AB = (5 - 3) / (-2+1)

Simplify.

AB = 2 / -1

AB = -2

So, your slope is -2.

~Hope I helped!~

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What is -54 minus -25

Sever21 [200]

-54-(-25)=-54+25=-29

The answer is-29

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3 years ago

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Determine the slope of the line that passes through each pair of points. Write in simplest form. (3,8) and (1,5)

boyakko [2]

Answer:

y = 3/2x + 7/2

Step-by-step explanation:

First, you need to find the slope.

y2 - y1 / x2 - x1

= 5 - 8 / 1 - 3

= 3/2

The slope is 3/2x.

To find the y-intercept, plug any one of the coordinates into the equation, which is y = 3/2x + b

y = 3/2x + b

8 = 3/2(3) + b

8 = 9/2 + b

7/2 = b

The equation y = 3/2x + 7/2.

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3 years ago

Lauren pays $19.99 for a membership fee to an online music store. Lauren buys songs from a new album at the price of $0.99 each.

sdas [7]

The right answer is Option B.

Step-by-step explanation:

Let,

Number of songs = x

Price of 1 song = $0.99

Membership fee = $19.99

Total amount paid = $21.97

According to given statement;

0.99x+19.99=21.97

Subtracting 19.99 from both sides

$0.99x+19.99-19.99=21.97-19.99\\0.99x=1.98$

Dividing both sides by 0.99

$\frac{0.99x}{0.99}=\frac{1.98}{0.99}\\x=2$

Lauren bought 2 songs.

The right answer is Option B.

Keywords: Linear equation, subtraction

Learn more about linear equations at:

#LearnwithBrainly

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4 years ago

In AUVW, v = 39 inches, u = 37 inches and ZU=66º. Find all possible values

Debora [2.8K]

Answer:

Step-by-step explanation:

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3 years ago

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The points (2, r) and (6, -4) lie on a line with slope 4. Find the missing coordinate r<br> R=

Rus_ich [418]

$\text{The slope-intercept form:}\ y=mx+b\\\\\text{We have:}\ m=4\\\\\text{then}\ y=4x+b\\\\\text{The line passes through point (6; -4). Substitute:}\\\\(6;-4)\to x=6;\ y=-4\\\\-4=4\cdot6+b\\-4=24+b\ \ \ |-24\\b=-28\\\\\text{therefore:}\ y=4x-28$
$\text{substitute}\ (2;\ r)\to x=2;\ y=r\\\\r=4\cdot2-28=8-28=-20$

Answer: r = -20

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4 years ago