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Katarina [22]
2 years ago
5

Which equation represents the line that passes through the points (-3, 7) and (9,-1)? oy--3x+5 o y=-x-7 o y=zx-7 oy - 12 2x+5​

Mathematics
2 answers:
mars1129 [50]2 years ago
8 0

Answer:the answer is A

Step-by-step explanation:

olchik [2.2K]2 years ago
5 0

Answer:

The answer is

<h2>y =  -  \frac{2}{3} x + 5</h2>

Step-by-step explanation:

Equation of a line is y = mx + c

where

m is the slope

c is the y intercept

To find the equation we must first find the slope of the line.

So the slope of the line using points (-3, 7) and (9,-1) is

<h3>m =  \frac{ - 1 - 7}{9 + 3}  =  -  \frac{8}{12}  =  -  \frac{2}{3}</h3>

Now we use the formula

<h3>y - y1 = m(x - x1)</h3>

where

m is the slope

( x1 , y1) is any of the points given

So the equation of the line using point

( - 3 , 7) and slope - 2/3 is

<h3>y - 7 =  -  \frac{2}{3} (x + 3) \\ y - 7 =  -  \frac{2}{3} x - 2 \\ y =  -  \frac{2}{3} x - 2 + 7</h3>

We have the final answer as

<h3>y =  -  \frac{2}{3} x + 5</h3>

Hope this helps you

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Answer:

x=0.6

Step-by-step explanation:

f(×)=3x-2 , 0=3x-2

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3 years ago
Given the net, what is the surface area of the rectangular prism below?
Vera_Pavlovna [14]

Answer: 56


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8 0
3 years ago
I don't know how to do this please help explain how to do it aswell as give the answer so i understand
Zinaida [17]

<u>We are given:</u>

The function: y = -16t² + 64

where y is the height from ground, t seconds after falling

<u>Part A:</u>

when the droplet would hit the ground, it's height from the ground will be 0

replacing that in the given function:

0 = -16t² + 64

16t² = 64                          [adding 16t² on both sides]

t² = 4                                [dividing both sides by 16]

t = 2 seconds                  [taking square root of both sides]

<u>Part B:</u>

for second droplet,

height from ground = 16 feet

time taken = t seconds

acceleration due to gravity = 10 m/s²

initial velocity = 0 m/s

h = ut + (1/2)at²                 [second equation of motion]

16 = (0)(t) + (1/2)(10)(t²)

16 = 5t²

t² = 16/5

t = 1.8 seconds (approx)

Therefore, the second droplet takes the least amount time to hit the ground

4 0
3 years ago
What is 2+5 (since this is very very hard its worth 20 points and I'll give brainliest to the first right answer)
Stolb23 [73]
7 is the answer kskdidfifjfjfkfiff
4 0
3 years ago
Read 2 more answers
Will give brainliest answer
melamori03 [73]

Answer:

See attached

Step-by-step explanation:

<em>Refer to attached</em>

Point B has coordinates of (8, 12) relevant to point P

  • Scale factor is 1/4

So the coordinates of the image are

  • x = 8/4=2, y= 12/4=3

The point is

  • B'(2, 3)

4 0
3 years ago
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