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
Delvig [45]
3 years ago
7

Write a linear equation given the point and slope or two points.

Mathematics
1 answer:
attashe74 [19]3 years ago
5 0

Answer:

1) y = -2x - 1

2) y = -3/4 + 3

3) y = 4x + 9

4) y = - 5/3x - 2

Step-by-step explanation:

b = y - m*x

1) (-7,13) and slope: -2

b = 13 - (-2)*(-7)

b = 13 - 14

b = -1

2) (4,6) lope = -3/4

b = 6 - (-3/4)*(-4)

b = 6 - 3

b = 3

y = -3/4x + 3

3) (-5,-11) and (3,-7)

Slope: (1 - - 11)/(-2 - - 5) = 12/3

= 4

b = -11 - (4) (-5) = 9

b = 9

4) slope = (-7 - 8)/(3- - 6)

= -15/9 = - 5/3

b = 8 - (-5/3)*(-6)

b = 8 - 10

b = -2

You might be interested in
A newspaper stand sold 1,000 copies of the city newspaper for $1,600 write and solve an equation to find the price of one copy
Vsevolod [243]

Answer: \$1.6

Step-by-step explanation:

Let be "x" the price in dollars of one copy of the city newspaper.

You need to analize the information provided in the exercise:

1. The total number of copies of the city newspaper sold in the newspaper stand is:

Total\ copies=1,000

2. The amount of money earned by selling 1,000 copies of  the city  newspaper is:

Total\ earned=\$1,600

Then, you can determine that the value of "x" can be found with:

x=\frac{Total\ earned}{Total\ copies}

3. Finally, substituting values, you get:

x=\frac{\$1,600}{1,000}\\\\x=\$1.6

7 0
3 years ago
What is the final step to be performed when computing σ(x - 2)2?​?
jasenka [17]
<span>σ</span> is a symbol for summation that means that it is used to add all the vales of the equation in the range for example taking 0<x<4 and x is an integer so Ď(x - 2)^2= (1-2)^2+(2-2)^2+(3-2)^2 The options were a. Square each value b. Subtract 2 points from each score C. Sum the squared values d. Subtract 22 from each X2 value As we can see above the answer is C. Sum the squared values
5 0
3 years ago
M=F+Frt<br><br> solve for t...
Aliun [14]

Answer:

m=f+Frt

M=f(1+rt)

M\1+rt=F

4 0
3 years ago
You use a garden hose to fill a wading pool. If the water level rises 11 centimeters every 6 minutes and you record the data poi
irina1246 [14]

Answer:

y=22\ cm

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=k or y=kx

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

Let

x -----> the number of minutes

y ----> the water level in centimeters

In this problem we have a proportional relationship between the variables x and y

Find the value of k

For x=6 min, y=11 cm

k=11/6 -----> the slope is equal to the constant of proportionality k

The linear equation is

y=(11/6)x

so

For (12,y)

we have

x=12 min

substitute in the equation and solve for y

y=(11/6)12

y=22\ cm

8 0
3 years ago
Evelyn goes to a middle school that includes grades 6, 7, and 8. She wants to estimate the percentage of students in the school
morpeh [17]
<span>B. The sample might not be representative of the population because it only includes students who are attending an after-school activity.</span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • Somebody help and explain!!!
    6·1 answer
  • HELP. Analyze the diagram below and complete the instructions that follow. Find the exact value of tan 0.
    7·1 answer
  • 7 + 2[(5^2)*152%]=<br> Please answer as soon as you can. I am in need of help INSTANTLY
    11·1 answer
  • In the diagram below secants PT &amp; PU have been drawn from exterior point P such that the four arcs intercepted have the foll
    5·1 answer
  • How to find amount of ammonia gas in mole if the question gives
    10·1 answer
  • Laura spent a total of 18 minutes making 6 bracelets. Each bracelet took the same amount of time. How many minutes did Laura spe
    14·2 answers
  • The area of a rectangle is 110 square units. Its length measures 11 units. Find the
    6·1 answer
  • There are 20 baseball cards and 10 football cards on display at a sports museum. Noah says that
    8·1 answer
  • If the mean of the numbers 8, 9, 10, 11, and x is 12, then what is the value of x?
    12·1 answer
  • 8) Mark ran a mean distance of 13.2 km in five days. The next day, Mark ran 20 km.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!