Real World Parabolas

The bottom of the Eiffle Tower is a parabola. the Eiffle Tower is in Paris, France. It was made of pure iron. It was built by Gustave Eiffel and it was completed in 1889. 

Scattered Data Post

here Link to original form.
First I asked 2 questions.
Link to Results Spreadsheet

Then I graphed those 2 questions
Link to Scatterplot Spreadsheet

Then I graphed it on graph paper.








Then I drew the line of best fit.










I chose to points on the graph and used the slope formula to find the the slope and then I used that to find the y-intercept. That gave me the formula of the line of best fit, y=mx+b.






Then, i put all the points into a Graphing Calculator.

Then, I found the Calculators line of best fit.








I did that by finding the calculator's version of the slope and the y=intercept.

Then, I entered the exact number into the y=. If you don"t enter the exact number, the equation could be off.








Then, I finally graphed the line of fit.







I asked how many sports everyone played and what is the actual day of their birthday? There was a positive correlation between the two questions. My written equation was y=x+4 and my Graphing Calculator's equation was y=1.606646+10.60403727. The two slopes were pretty close to each other but the y-intercept was around 6 numbers apart. The question that could be answered by the equation of best fit is the relationship between the number of sports you play and your birthday.

Math Blog Assignment 3

Lets go Shopping

Currency Exchange Rate

Click here for the website I used!!

First Trimester Reflection

Service Learning in Math

Chapter 4 Vocab

Adding and subtracting Integers

Adding and Subtraction Integers

A) 5+ -8 Since it is a positive 5 and a negative 8, you subtract 5 from 8 but since the negative number is greater the the positive number, the answer is negative which is -3.

B) -4+10 Since there is a negative 4 and a positive 10 you subtract 4 from 10 but since the positive number is greater then the negative number, the answer is positive which is 6

C)4-9 Since they are both positive you just subtract 9 from 4 which gives you a negative number. The answer is negative because the greater number is being subtracted from the littler number.

D)-8-(-9) Since they are both negative numbers, you add them together getting a negative number. You add them together because when you add numbers to a negative number, it get smaller. The answer is -17.

Chapter 2 vocab

Chapter 2 Math Vocab

Absolute Value- the distance of a quantity from zero

Additive Inverse-the number in the set of real numbers that when added to a given number will yield zero.

Irrational Number-a number that cannot be exactly expressed as a ratio of two integers

Odds-the probability that something is so, will occur, or is morelikely to occur than something else

the odds of getting green is 1:6

Rational number-a number that can be expressed exactly by a ratio of two integers

Perfect square-a rational number that is equal to the square of anotherrational number

9 because 3x3=9

Probability-a strong likelihood or chance of something

 the probability of getting green is 1/6

Measure of central tendency- several measures which calculate a representative or average value from from a set of numbers

Integer games!!!!

Integer Games

click here

click here 

click here

Spreadsheet graphs

For the misleading graph click here

It is possible to make a spreadsheet misleading. The graphs I have above are misleading because the y axis starts on 200 instead of 0.

We use spreadsheets in math to graph problems online.