1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Roman55 [17]
2 years ago
11

Find the equation of a line passing through (3,4) and slope of -2

Mathematics
2 answers:
guapka [62]2 years ago
3 0

Answer: <em>2x + y = 10</em>

Step-by-step explanation: When we're given a point and a slope, we can use the point-slope formula to write the equation of a line.

The point-slope formula is y - y₁ = m(x - x₁).

Now we can substitute our point and our slope into the formula.

y - 4 = -2(x - 3)

~distribute

y - 4 = -2x + 6

~isolate y

y = -2x + 10

~put into standard form

2x + y = 10

Orlov [11]2 years ago
3 0

Answer:

y=-2x+10

Step-by-step explanation:

To find the equation in forms of y=mx+b, first we must put in the slope(or m) which is -2, so we have:

y = -2x+b

Now, we can find the y intercept(or b) by plugging in our x and y values that the line passes through:

4 = -2(3)+b

4=-6 + b

10 = b so we have y = -2x+10

You might be interested in
A dolphin can swim up to 40 miles per hour.what is the speed in feet per hour?
zalisa [80]
In this question, the speed of the dolphin is already given, but the unit is different. The speed of the dolphin is given as 40 miles per hour and it has to be converted to feet per hour.
We already know that 1 mile = 5280 feet
Then
40 mile = 5280 * 40 feet
            = 211200 feet
So the speed in feet per hour will be 211200 feet per hour. I hope the procedure is clear enough for you to understand. You can always use this method for solving similar problems without requiring any help from outside.
5 0
3 years ago
he books in a private library are classified as fiction and nonfiction. There are 400 books in the library. There are 40 more fi
vfiekz [6]
First, you have to set a system of equations to determine the number of fiction and of nonfiction books.Call f the number of fiction books and n the number of nonfiction books. Then 400 = f + n. And f = n + 40 => n = f - 40 => 400 = f + f - 40 => 400 - 40 = 2f => f = 360 / 2 = 180. Now to find the probability of picking two fiction books, take into account the the Audrey will pick from 180 fiction books out of 400, and Ryan will pick from 179 fiction books out of 399, so the probability will be<span> (180/ 400) * (179/399) = 0.20 (rounded to two decimals). Answer: 0.20</span>
3 0
3 years ago
there are two bags containing only blue and black marbles bag a has 4 blue marbles and 6 black marbles. Bag b has 6 blue marbles
Elena L [17]

Answer

Arranged from least likely to most likely

- Event 4. choosing a yellow marble from bag B​

- Event 3. choosing a blue marble from bag B

- Event 4 choosing a blue marble from bag A

Explanation

Bag A

4 blue marbles and 6 black marbles.

Bag B

6 blue marbles and 14 black marbles.

So, to arrange given cases in the order of least likely to most likely, we need to find the probabilities of each of them.

Event 1. choosing a blue or black marble from bag B

This would entail picking bag B first, then picking from either blue or black ball first. Since all the balls in the bag are either black. So, the probability is given as

Probability

= (Probability of picking one type of bag) (Probabiliy that the ball is either blue or black)

= (0.5) (1)

= 0.5

Event 2. choosing a blue marble from bag A

Probability

= (Probability of picking bag A) (Probabiliy that the ball is blue from A)

= (0.5) (4/10)

= (0.5) (0.4)

= 0.2

Event 3. choosing a blue marble from bag B

Probability

= (Probability of picking bag B) (Probabiliy that the ball is blue from B)

= (0.5) (6/20)

= (0.5) (0.3)

= 0.15

Event 4. choosing a yellow marble from bag B​

Probabiliity

= ((Probability of picking bag B) (Probabiliy that the ball is yellowfrom B)

= (0.5) (0/20)

= 0.5 (0)

= 0

0 < 0.15 < 2 < 0.5

Hope this Helps!!!

6 0
1 year ago
Evaluate the expression x - 9, if x = 12.
anastassius [24]

Answer: 3

Step-by-step explanation: Substitute the value of the variable into the equation and simplify.

7 0
2 years ago
Read 2 more answers
If 5X +5 equals 15/11 what does X equal
antiseptic1488 [7]

Answer: -8/11 or -.72727...

3 0
2 years ago
Other questions:
  • I will send a picture of it thanks​
    6·2 answers
  • Determine whether the triangles are similar. If so, what are the similarity statement and the postulate or theorem used?
    10·1 answer
  • Help please
    11·1 answer
  • Triangle XYZ is rotated 90° counterclockwise about the origin. On a coordinate plane, triangle X Y Z has points (1, 3), (4, nega
    11·3 answers
  • Length = 25cm, bredth =60 cm, Volume = 7500cm^3. Find height of a cuboid.
    14·2 answers
  • How do i write this in slope intercept form <br><br>y=-3/4x+3​
    5·1 answer
  • What is <img src="https://tex.z-dn.net/?f=%7Cx-6%7C" id="TexFormula1" title="|x-6|" alt="|x-6|" align="absmiddle" class="latex-f
    15·1 answer
  • Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
    6·1 answer
  • (3,20) with a slope of 4
    8·1 answer
  • What is 25% of 18£ I need help doing it​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!