Pre- Cal, Week 11

I This week in Pre- Cal 11, I learned this week how to graph linear equations in two variables. A linear equation divides a graph into two sections. A linear equation has variables to the first degree only! A linear inequality looks very similar to a linear equation, the difference between the two is that a linear equation has a “equals” symbol and a linear inequality has a “inequality” symbol. When writing or understanding a graph of a linear inequality we shade one side of two sections divided by the linear equation. The side of the linear equation that is shaded is the region that will “satisfy” the inequality.

To find the region that will satisfy the inequality we choose a point (called the test point) on either side of the slope and plug it into the linear inequality. Then solve the linear inequality. If the inequality sign is true to the numbers then shade in the region, if not shade in the opposite region on the graph. never choice a point in the graph .

Below is a example of how I graphed a linear equation in two variables using the steps above…

Pre- cal, Week 10

This week in Pre- Calc, we were studying for the math midterm. I decide to look back at the very first unit, since that would re-jog my memory. Week 1 : Arithmetic and Geometric Series and Sequences. I believe the most beneficial way to help me prepare for the mid to was to look back and wright out the key things on one piece of paper.

MAKE SURE TO DO QUESTIONS FROM THE UNIT TOO!!!

LOTF Podcast

We recorded a podcast from a psychologist perspective on the novel Lord of the Flies, relating human morality, social conformity and herd mentality, including examples of how it occurs among the boys.

Work Cited:

“When people are part of a group, they often experience deindividuation, or a loss of self-awareness”

-Examining the Mob Mentality, source.southuniversity.edu/examining-the-mob-mentality-31395.aspx.

“A professor from Florida, figure out that you only need 5% to start mob mentality”

-“‘Herd’ Mentality Explained.” Psych Central News, 28 June 2016, psychcentral.com/news/2008/02/15/herd-mentality-explained/1922.html.

“Kids tend to look towards older people for direction”

-Lopez, Linette. “THE SIBLING EFFECT: 12 Amazing Facts About Brothers And Sisters.” Business Insider, Business Insider, 14 Sept. 2011, www.businessinsider.com/sibling-effect-jeffrey-kluger-2011-9.

“When you start to develop morals”

-“Early Childhood Moral Development.” Child Development & Parenting: Early (3-7), www.gracepointwellness.org/462-child-development-parenting-early-3-7/article/12769-early-childhood-moral-development.

“One might find it easier to follow someone instead of voicing their opinion, fitting into a group is easier”

-Humphries, Lewis. “10 Signs You’re A Follower Instead Of A Leader.” Lifehack, Lifehack, 23 July 2015, www.lifehack.org/287415/10-signs-youre-follower-instead-leader.

In class:

“Ages of 2-4 is when children learn the difference between right and wrong”

“Parents being away from a child for 7-8 months can change how the child thinks and views things”

“Morals are gained through growing up, not something you are born with”

“Being away from your parents for too long can lead you to look up to an older authority”

“The boys still did bad things whether they agreed with it or not, the majority was doing it so they joined”

 

 

Pre-Calc, Week 9

I learned in Pre Calc this week how to find the vertex of a quadratic equation that is in factored form. Here is how you find it: The first step is to find the x-intercepts or “zeros” of the equation. Once you’ve determined the zeros/ x-intercepts, you find the average of the zeros by adding them and dividing them by two. Once you find that, you plug it in as X in the equation in order to find Y. The x and y coordinates are the coordinates to your vertex.

 

Pre-Cal, Week 7

During Pre-Cal  this week i learned how to solve a chart with the properties of quadratic functions. To chart a quadratic equation you have to know how to tell when the table of value is showing a quadratic equation, instead of a linear equation. A linear equation in a table of value always has a y value (the output) that goes up or down by the same amount each time in the first differences. A quadratic equation in a table of value always has a y value that goes up or down by the same amount each time in the second difference. Below is a example of both a linear equation, and a quadratic equation charted.

When solving for quadratic functions, you should remember that the x intercept is always equal to y=0 and the y intercept is equal to x=0 (when solving). To find y you simply plug x into the given quadratic function. Below are some examples to visualize how I would solve for y using the table of values and quadratic function.

Pre- Cal, Week 6

This week in pre – cal, we got taugh 3 ways of doing an quadratic equation. 1. Factoring        2. Square rooting 3. Quadratic formula.  I will show all 3 ways of solving an quadratic equation. HINT : always trying to isolate the variable

1. Factoring

2. Square Rooting

3. Quadratic Formula

 

“The Secret Life of Walter Mitty” Narrative

“He took one last drag his cigarette and snapped it away. Then with that faint, fleeting smile playing about his lips, he faced the firing squad; erect and motionless, proud and disdainful, Walter Mitty the undefeated, inscrutable to the last “ …

 

“Ok Walter, let’s go, now Walter, now,” his wife haggardly says. Walter goes into the car and drops Ms. Mitty off at home. “I’ll be right back hunny, just have to go grab something from the store,” Walter yells from inside the car. Walter is going to the Garden of Life to buy his wife some coreopsis. When Walter gets there, he buys the biggest, most beautiful coreopsis anyone has ever seen. When he goes up to pay, he looks to his left and spots a bunch of matches. “Sir, Sir can I help you?” The cashier girl asks.  Walter thoughtfully responds, “Ummmm, yes, do you have a phone I can borrow?”.  “Right this way Sir,” the cashier responded. “Thank you so much,” he says…

 

He finds himself in a field full of coreopsis and long dry hay, with matches in his hand.  He looked around and couldn’t see any sign of life.  Out of nowhere, a massive amount of intimidating crows start circling above him.  They start swooping at him, trying to peck him as if he was food.  He tries to block the birds and in a panic, drops the matches.  The dry hay and coreopsis immediately start on fire.  The fire started to build very fast, while the birds continued to peck him.  Suddenly, a puddle appears in front of him.  Walter is forced to jump inside the puddle to escape the relentless birds and encompassing fire.  He enters the gross, freezing cold water, with fish and seaweed everywhere.  He spots his car on the sea floor.  There is seaweed and vines growing all around.  He hears the car radio on. “Walter, are you there? Why don’t you listen?”  The inscrutable sounds eerily coming from the radio.  It sounded like his wife….“Walter, Walter?  Were u even listening to me… ughhhh,” his wife nagged him.  He finds himself begrudgingly being spoke to by his wife on the phone.  “Yes hunny, coming home now see you soon,” Walter sheepishly answers back.  Buy’s the coreopsis, some balloons and goes to his car.  As Walter drives home…

 

 

Pre-Calculus, Week 5

This week in Pre- Cal we went over Radical Equations and how to solve the equation. When solving a radical equation you need to move the variable to either the  left or right side of the = sign trying to isolate the variable. Also when solving a radical equation, when you have square root you would square it to get ride of the radical, make sure what you do to one side of the equations you do to the other and you would be left with the side without the radical and the other side would be squared.

Example:  make sure you are always checking that the variable would work if you put it back into the equation

I did learn this week that when Simplifying a Quotient of Radical Expression. You never want a radical in the denominator when you have an expression.

Step 1 : Multiply the numerator and the denominator by the radical in the denominator

Step 2: Then conjugate of the binomial denominator

Step 3: value the variable

Example: