find three different ordered pairs that are solutions of the equation. graph the equation
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Find three different ordered pairs that are solutions of the equation. Graph the equation. P 224 #5) y=2x-6. Given (x 1 ,y 1 ) and (x 2 ,y 2 ), find slope using m = y 2 -y 1 x 2 -x 1. 1. Find the slope of the line passing through (-3,0) and (-1,6). - PowerPoint PPT PresentationTRANSCRIPT
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Find three different ordered pairs that are solutions of the equation. Graph the equation.
P 224 #5) y=2x-6X Y
0 2(0)-6=-6
3 2(3)-6=0
1 2(1)-6=-4
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1. Find the slope of the line passing through (-3,0) and (-1,6)
Given (x1,y1) and (x2,y2), find slope using m = y2-y1
x2-x1
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Given (x1,y1) and (x2,y2), find slope using m = y2-y1
x2-x1
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Given (x1,y1) and (x2,y2), find slope using m = y2-y1
x2-x1
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Given (x1,y1) and (x2,y2), find slope using m = y2-y1
x2-x1
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4.5 Direct variationReview for Friday quiz 4.1-4.5Two variables vary directly if k not = 0 and
y=kxThink direct variation (y=kx) indirection variation (y=k/x)k=constant of variation, also the slope
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Given (x1,y1) and (x2,y2), find slope using m = y2-y1
x2-x1
Key concepts from 4.4
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4.5 Direct variationTwo variables vary directly if k not = 0 and
y=kxThink direct variation (y=kx) indirection variation (y=k/x)k=constant of variation, also the slope
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4.6 Graphing Using Slope Intercept Form
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4.8 Functions and RelationsRelation: any set of ordered pairsFunction: for every input, there is exactly one
output
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Ch 5 Writing Linear Equations
5.1 Writing Linear Equations: slope-intercept form
5.2 Writing Linear Equations given slope and a point
5.3 Writing Linear Equations given two points5.4 Fitting a Line to Data5.5 Point-Slope Form of a Linear Equation5.6 The Standard Form of a Linear Equation5.7 Predicting with Linear Models
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5.1 Writing Linear Equations in Slope-intercept form
Write an equation given the slope and y-intercept
m=2 b = -5 y=mx+b y=2x – 5
2. Write and equation of the line from a graph:
m = y2-y1 (-2,0) (0,-1)
x2-x1
m = -1 – 0 = -1 m= -½ 0 – -2 2
y=mx + b y = (-1/2)x + b0 = (-1/2)(-2) + b0 = 1 + bb= -1y=(-1/2)x -1
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5.2 Writing Linear Equations given the slope and a point
Write an equation of the line that passes through point (-3,0) and has a slope of 1/3.
y = mx + b
y= (1/3) x +b
0 = (1/3) (-3) +b
0 = -1 + b
b = 1
y = (1/3)x +1
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Write the equation of parallel lines
Write the equation of the line that passes through (3,-4) and is parallel to the line y= -3x-2
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M T W Th FOct 24 Oct 25
5.1 and 5.2Oct 265.3
Oct 27 5.4
Oct 28No school
Oct 315.5
Nov 15.6
25.6
35.7
45.7
7review
8 Ch 5 Test
9 10 11
Date Assigned (due next day)
Assignment
Tuesday 10/25 5.1 p276 #12,18,22,24,28-29,30-32,47,485.2 p282 #12,22,24,30,34,42,43,48,49
Wednesday 10/26 5.3 p288 #20,28, 40,45,46,51,52,66,74Thursday 10/27 5.4 p296 #10,14,18,20,22,28-30Monday 10/31 5.5 p303 #18,26,34,40,48,74,80,87; Tuesday 11/1 5.6 p311 #18,32,34,44,50,52Wednesday 11/2 Continue 5.6Thursday 11/3 5.7 p318 #11-27Friday 11/4 p326 #2-24Monday 11/7 ReviewTuesday 11/8 Test
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Wednesday Oct 26To review yesterday, do #1,4,11
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5.1 Writing Linear Equations: slope-intercept form5.2 Writing Linear Equations given slope and a point5.3 Writing Linear Equations given two points
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Homework 5.3 p288
#20
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Homework 5.3 p288 #20,28
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Homework 5.3 p288
#40
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Homework 5.3 p288 #51,52
http://www.youtube.com/watch?v=sf7n_pOzFY4&feature=fvsr
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Homework 5.3 p288 #66,74
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5.4 Fitting a line to Data Shoe Size
Height(inches)
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Approximating a best-fitting line1. Plot the points2. Draw a line that best approximates the data3. Locate two points on the line, determine x
and y coordinates.4. Use the two points to find the slope and
y-intercept5. Write the equation of the line
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5.4 p296 #10,14,18,20,22,28-30
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Please turn in the following homework assignments:
5.1 p276 #12,18,22,24,28-29,30-32,47,485.2 p282 #12,22,24,30,34,42,43,48,495.3 p288 #20,28, 40,45,46,51,52,66,74
Option #3 40option #1 Option #2
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October 31
Review 5.1-5.4
New 5.5 Point-slope form of a linear equation
Quiz 5.1-5.5 on Wednesday
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Ch 5 Writing Linear Equations
5.1 Writing Linear Equations: slope-intercept form
5.2 Writing Linear Equations given slope and a point
5.3 Writing Linear Equations given two points5.4 Fitting a Line to Data5.5 Point-Slope Form of a Linear Equation5.6 The Standard Form of a Linear Equation5.7 Predicting with Linear Models
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5.1 Write an equation given the slope and y-intercept m=2 b = -5 y=mx+b y=2x – 5
5.2 Writing Linear Equations given the slope and a pointWrite an equation of the line that passes through point (-3,0) and has a slope of 1/3.y = mx + by= (1/3) x +b0 = (1/3) (-3) +b0 = -1 + bb = 1y = (1/3)x +1
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5.4 Approximating a best-fitting linePlot the pointsDraw a line that best approximates the dataLocate two points on the line, determine x and
y coordinates.Use the two points to find the slope and y-
interceptWrite the equation of the line
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5.5 Point-slope form of a linear equation
We know:
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Homework 5.5 p303 #18,26,34,40,48,74,80,87
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Homework 5.5 p303 #18,26,34,40,48,74,80,87
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Homework 5.5 p303 #18,26,34,40,48,74,80,87
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Homework 5.5 p303 #18,26,34,40,48,74,80,87
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Homework 5.5 p303 #18,26,34,40,48,74,80,87
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Homework 5.5 p303 #18,26,34,40,48,74,80,87
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Homework 5.5 p303 #18,26,34,40,48,74,80,87
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Homework 5.5 p303 #18,26,34,40,48,74,80,87
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