February 8 2016
Transcript of February 8 2016
Today: Grade Trackers: Test Scores, New Class
Work, Khan Topics Warm-Up: 5 Most Missed The Coordinate Plane: Graphing in Two Variables Relations & Functions
Class Work 3.4
1st Period: 46% 3rd Period: 58% 4th Period: 37% 5th Period: 50%
Class Averages:
Grade TrackersTest # 3 Results
Warm-Up Section of NB
Khan Academy Topics for 2/14/16
Let's start with a question that 80% of people under 17 (that's you) answer correctly within 5 seconds and half of all adults get wrong even after 2 minutes. What direction is the bus
moving?
Left Right
Warm-Up: Five Most Missed Questions from Test 2
5Vers. 2; 39% correct
A) B) C) D) E)
Sport # of People
Baseball 29Football 40Soccer 21
What percent of people like football best?A) B) 36% C) 27% D) 49% E) 44.4%
4
6. What is 22% of ?
A) 2.75 B) 1.33 C) 1.25 D) 2.25 E) 1.75
7. 5 - 3 = 3V1 34%
4V.1; 37%
V. 2
MHS has 1600 students. We can assume that one-half are girls and are born in December. Statistics say that in any given population about are left handed. If this group were a club, how many members would it have?
a. 2.1% B) .215 C) 21% D) 19.5% E) 975%
4. What is 65% of 30%
A) 3 B) 7 C) 11 D) 14 E) 17
2V.3; 31%
1V.2; 28%
Day 1, The Coordinate Plane
The Coordinate Plane: Graphing Linear Equations & Inequalities
Coordinate Points and Quadrants Relations & Functions
Domain & Range Function Rules Function Notation Graphing from tables & equations
Forms of the Equation Standard/Slope Intercept/Point Slope
Calculating Slope X & Y Intercepts Parallel & Perpendicular Lines Graphing Inequalities
Resources from the V6 Math Site:
Resources from the V6 Math Site:
But Wait, there's more...Vocabulary Section of NB
The Coordinate Plane: Graphing in Two Variables
2. The 4 quadrants labeled:1. The axes (plural of axis) labeled:
3. Ordered pairs and the quadrants4. The Intercepts:5. Independent & Dependent Variables6. Graphs & Equations:7. Three ways to display data:
c) grapha) Table of values coodinates
b) equation
The 2 dimensional coordinate plane:
x
y
III
III
IV
Coordinates are always written in (x,y) orderWhat quadrant are the
following ordered pairs located?
Quadrant Names
Graphing LINEar EquationsThis unit is about lines. Straight lines. Just as "A picture is worth a 1000 words", a line contains lots of information too.. if you know where to look and how to find it
As we progress through the unit, keep these main points in mind always:
1. There is enough information in an equation (y = 2x + 4) to be able to graph a line.2. There is enough information in a line to be able to write an equation. 3. The purpose, the entire purpose, of linear equations is to see how something (let's call it variable "y") changes when something else (let's call it variable "x") changes.
A linear equation is an equation whose solutions fall on a line on the coordinate plane. All solutions of a particular linear equation fall on the line, and all the points on the line are solutions of the equation.
What is a Linear Equation?Vocabulary
y = 2x
-101
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Vocabulary ReviewRelation: A set of order pairs.Domain: The x-values in the relation. The set of all first
coordinates of the ordered pairs.Range: The y-values in the relation. The set of all second
coordinates of the ordered pairs.Function: A relation where each x-value is assigned(maps to)
only one y-value.Vertical Line Test: Using a vertical straightedge to see if the
relation is a function. Mapping: A diagram used to see if the relation is a function.
……….
Vocabulary
This rule is especially important to remember