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
mina [271]
3 years ago
14

The following scatter plot shows the number of page views for a popular website and how many people signed up to receive emails

from the company for upcoming events.
1) Draw a line of best fit on the scatter plot.
2) Find the slope and y-intercept
3) Write an equation for the line of best fit drawn

Mathematics
1 answer:
My name is Ann [436]3 years ago
6 0

Answer:

See Explanation.

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtract Property of Equality

<u>Algebra I</u>

Slope Formula: \displaystyle m=\frac{y_2-y_1}{x_2-x_1}

Slope-Intercept Form: y = mx + b

  • m - slope
  • b - y-intercept

Linear Regression

Step-by-step explanation:

We can draw any best line of fit, as long as it is <em>reasonable</em> around the points that are given.

We can just take 2 points and use slope formula and Slope-Intercept Form to find the equation for the best line of fit.

Using Linear Regression, we can determine the <em>true</em> best line of fit using graphing utilities.

<u>Finding the best line of fit</u>

<em>Define 2 points</em>

Point (21600, 205)

Point (27000, 290)

<em>Find slope m</em>

  1. Substitute in point [SF]:                    \displaystyle m=\frac{290-205}{27000-21600}
  2. [Fraction] Subtract:                           \displaystyle m=\frac{85}{5400}
  3. [Fraction] Simplify:                            \displaystyle m=\frac{17}{1080}

<em>Find equation</em>

  1. Define equation [SIF]:                        \displaystyle y = \frac{17}{1080}x + b
  2. Substitute in point:                            \displaystyle 290 = \frac{17}{1080}(27000) + b
  3. Multiply:                                             \displaystyle 290 = 425 + b
  4. Isolate y-intercept <em>b</em>:                         \displaystyle -135 = b
  5. Rewrite:                                             \displaystyle b = -135
  6. Redefine equation:                           \displaystyle y = \frac{17}{1080}x - 135

Slope-Intercept Form tells us that our slope <em>m</em> = \displaystyle \frac{17}{1080} and our y-intercept \displaystyle b = -135.

Setting this as function f(x), we can see from the graph that it is extremely accurate (Blue line).

<u>Using Linear Regression</u>

Depending on the graphing calc you have, the steps may be different.

Using a graphing calc, we can use statistics and determine the <em>best</em> best line of fit.

When we determine the values, we should see that our equation would be g(x) (Green Line).

<em>Credit to Lauren for collabing w/ me in graphing.</em>

You might be interested in
The sum of two consecutive integers is 57. If x is the integer what are the two numbers
ra1l [238]
The two numbers are 28 and 29.

5 0
3 years ago
Which equation represents the relationship in the graph?<br><br> giving brainliest!!!
Xelga [282]
A,the intercept is equal to 70
6 0
2 years ago
Read 2 more answers
Find the cost of 25 shares of stock at 11 1/4 per share
musickatia [10]
I believe the answer is 2.222222222
4 0
3 years ago
(-3x^2 +11x -1)+(7x^2 - 4x + 4)
muminat

Answer: what answer do you want?

Step-by-step explanation:

4 0
3 years ago
GIVE AN EXPLANATION PLEASE! A BRAINLEEST IF TWO OR MORE PEOPLE HAVE ANSWERED IT. (FIRST COME FIRST SERVE BASES + ANSWER HAS TO B
FrozenT [24]

The profit percentage = 16.3%

6 0
3 years ago
Other questions:
  • WILL MARK BRAINLIEST ANSWER<br> 2x^2+20x=-38<br> show work
    5·2 answers
  • Mary baked a batch of three dozen cookies for 40 woman at the woman's club. Next month the woman's club is expecting 60 women to
    15·1 answer
  • On Saturday, Mark sold 2 7/8 gallons of lemonade. On the same day, Regan sold 2/3 as much lemonade as Mark. How much lemonade, i
    12·1 answer
  • At time​ t, the position of a body moving along the​ s-axis is sequalsnegative t cubed plus 15 t squared minus 72 t m. a. Find t
    10·1 answer
  • There are 16 ounces in 1 pound Chanda picked 9 pounds of cherries from her tree this year find the number of ounces of cherries
    15·1 answer
  • Juanita plans to purchase a 50 fl. oz. shampoo at $15.10. She has a $2.15 coupon off from the store. What is the final price for
    6·1 answer
  • Simplify the expression (4x − 3)(x + 5)
    10·2 answers
  • The state of California takes about 8% of your income for income tax. How much of your money do you owe California in taxes each
    10·1 answer
  • 4773 rounded to the nearest hundred
    14·2 answers
  • Answer this image ( I have to type 20 characters)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!