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
Temka [501]
3 years ago
10

Write the point slope form of an equation of the line that passes through (2,1) and (4,-3)

Mathematics
2 answers:
steposvetlana [31]3 years ago
5 0

Answer: y+3=-2(x-4)

Step-by-step explanation:

First, let’s find the slope. To do that just do (y2-y1)/(x2-x1). Substitute: (-3-2)/(3-2)= -5.

second, we want to put it in y=mx+b form so choose which coordinates you want to work with. Let’s say (2,1). So, 1=-5(2)+b

*(the one represents the y value, the -5 is slope and 2 is the x value)*

now just solve for b. b= 11

so the equation is: y=-5x+11

now, you can solve for the choices (I mean put them in y=Mx+b form) or just substitute in the coordinates to see which equation will work. In this case for choice w if we do 1+3=-2(2-4), that will be the answer.

dolphi86 [110]3 years ago
3 0

Answer:

b

Step-by-step explanation:

1. find the slope

y2-y1/x2-x1

-3-1=-4

4-2=2

=-2-------this is our slope

point slope equation

y-y1=m(x-x1)

y+3=-2(x-4)

You might be interested in
MANY PTS AND BRAINLY FAST
Troyanec [42]

Answer:

Option C

Step-by-step explanation:

we have

-6x^{2} -6x+12=0

step 1

Group terms that contain the same variable, and move the constant to the opposite side of the equation

-6x^{2} -6x=-12

step 2

Factor -6 leading coefficient'

-6(x^{2} +x)=-12

step 3

Complete the square

Remember to balance the equation by adding the same constants to each side

-6(x^{2} +x+0.25)=-12-1.5

-6(x^{2} +x+0.25)=-13.5

step 4

Rewrite as perfect squares

-6(x+0.5)^{2}=-13.5

simplify

(x+0.5)^{2}=2.25

5 0
3 years ago
Read 2 more answers
A hammock that hangs between two trees makes a parabola shape that has the equation y = 0.4(x- 3)² +1, where x is the distance f
34kurt

Answer:

A. The lowest point of the hammock is at the point 1 meters above the ground and 3 meters from one end of the hammock

B. The two trees are 6 meters away from one another

Step-by-step explanation:

The given equation of the parabola representing the hammock is as follows;

y = 0.4·(x - 3)² + 1

The general equation of a parabola is a·(x - h)² + k;

Where the coordinates of the vertex point of the parabola, which is the lowest (or highest, furthest) point on the vertex is (h, k) = (3, 1)

Therefore, we have;

A, The coordinates of the lowest point on the hammock is (3, 1)

Therefore, the lowest point of the hammock is at 1 meters above the ground and 3 meters from one end of the hammock

B.  Given that the distance from one end is "x", we have;

The height at which the hammock is attached is given as the point where x = 0 as follows;

Given that the vertex of the parabola represents the axis of symmetry of the parabola, we have that the horizontal distance from one end of the hammock to the vertex point of the parabola that the hammock forms is (3 - 0) meters = 3 meters

Therefore, by the definition of symmetry, the distance from the vertex point to the other end of the parabola that the hammock forms is also 3 meters

From which we have, the distance the two trees are from one another is 3 meters + 3 meters = 6 meters.

4 0
2 years ago
PLEASE HELP ME WITH THIS QUESTION!! Thanks
Gre4nikov [31]

Answer:

20% probability

Step-by-step explanation:

First, we need to calculate the area of all the figures inside the rectangle.

Area of triangle= 1/2 BH

So, 3x2=(6)

Area of Square= L^2

3x3=(9)

Area of rectangle= LxW

=60.

60+9+6= 75.

75 is the total area.

Now, lets find the added area of only the triangle and square.

9+6= 15

The probability will be 15/75=

Convert into percent form

= 20%

Hope this helps and please mark me brainliest :)

7 0
2 years ago
1. Questions 1 and 2 refer to the figure shown.
sweet [91]
Answer: b. segment TX = 16 m.
3 0
3 years ago
Which simplified expression represents the area of the parallelogram?
Hunter-Best [27]
A=bh

Where b is the base and h is the height
7 0
3 years ago
Other questions:
  • If f(x)=-3x+4 and g(x)=2 solve for the value of x for which f(x) = g(x) is true
    15·1 answer
  • Jake has a piece of yarn that is feet long Blair has a piece of yarn that is 4 inches long. who has the longer piece of yarn? Ex
    11·1 answer
  • A village wishes to measure the quantity of water that is piped to a factory during a typical morning. A gauge on the water line
    14·1 answer
  • Working simultaneously and independently at an identical constant rate, 4 machines of a certain type can produce a total of x un
    14·1 answer
  • Each edge of a cube measures 8.9 cm.<br><br> What is the surface area of the cube?
    10·2 answers
  • Formula area of the square​
    7·1 answer
  • A circle has a circumference of 1,133.54 units.What is the diameter of the circle?
    10·1 answer
  • Two of the angles in a triangle measure 56° and 21°. What must be the measure of the third angle?
    9·2 answers
  • The radius of a cylindrical water tank is 5.5 ft, and its height is 8 ft. What is the volume of the tank?
    11·1 answer
  • in art class 5 students are able to share 20 crayons. How many crayons are needed if there are 30 students in the class?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!