# creating a foldable for equations of lines equations of lines slope direct variation slope-intercept...

Post on 18-Dec-2015

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• Slide 1
• Creating a foldable for Equations of Lines Equations of Lines Slope Direct Variation Slope-Intercept Form Standard Form Point-Slope Form Equation w/ slope & 1 point Equation w/ 2 points Horizontal & Vertical Lines Parallel & Perpendicular Lines Graphing Lines X-intercept and Y-intercept
• Slide 2
• Folding the Paper Fold the paper down so that about is revealed at the bottom
• Slide 3
• Folding the Paper Fold the paper down so that about is revealed at the bottom
• Slide 4
• Folding the Paper Fold the paper down so that about is revealed at the bottom About reveal here
• Slide 5
• Folding the Paper Each piece of paper will be folded over the previous one, and leave about 3/4 reveal for all of them note images About reveal here Fold next sheet here
• Slide 6
• Folding the Paper Each piece of paper will be folded over the previous one, and leave about 3/4 reveal for all of them note images About reveal here Fold next sheet here
• Slide 7
• Folding the Paper Repeat the process until you have six folded sheets like above. Color arrangement does not matter.
• Slide 8
• Staple the Paper Staple the paper close to the edge at the top leave enough room write on the top flap
• Slide 9
• Labeling the Paper Label the exposed flaps with the labels listed above. You may want to write in pencil, then write over with magic marker. Equations of Lines Slope Direct Variation Slope-Intercept Form Standard Form Point-Slope Form Equation w/ slope & 1 point Equation w/ 2 points Horizontal & Vertical Lines Parallel & Perpendicular Lines Graphing Lines X-intercept and Y-intercept
• Slide 10
• Labeling the Paper Label the exposed flaps with the labels listed above. You may want to write in pencil, then write over with magic marker. Slope Direct Variation Slope-Intercept Form Standard Form Point-Slope Form Equation w/ slope & 1 point Equation w/ 2 points Horizontal & Vertical Lines Parallel & Perpendicular Lines Graphing Lines X-intercept and Y-intercept
• Slide 11
• Direct Variation Slope-Intercept Form Standard Form Point-Slope Form Equation w/ slope & 1 point Equation w/ 2 points Horizontal & Vertical Lines Parallel & Perpendicular Lines Graphing Lines Formula: y=mx If y=6 when x = 2, find y when x= 4 y=mx 6=m(2) y=3(4) 3=m y=12 _____ X-intercept and Y-intercept
• Slide 12
• Slope-Intercept Form Standard Form Point-Slope Form Equation w/ slope & 1 point Equation w/ 2 points Horizontal & Vertical Lines Parallel & Perpendicular Lines Graphing Lines Formula: y=mx+b b=y-intercept Write in slope-intercept form: (1,3) m=2y=mx+b 3=2(1)+by=2x+1 3=2+b 1=b X-intercept and Y-intercept
• Slide 13
• Standard Form Point-Slope Form Equation w/ slope & 1 point Equation w/ 2 points Horizontal & Vertical Lines Parallel & Perpendicular Lines Graphing Lines X-intercept and Y-intercept Formula:Ax+By=C -A cant be negative -A,B,C must be whole #s
• Slide 14
• Point-Slope Form Equation w/ slope & 1 point Equation w/ 2 points Horizontal & Vertical Lines Parallel & Perpendicular Lines Graphing Lines Formula: y-y1=m(x-x1) Write the point-slope form for (2,-3) m=4 Plug into formula y-(-3)=4(x-2) y+3=4(x-2) X-intercept and Y-intercept
• Slide 15
• Equation w/ slope & 1 point Equation w/ 2 points Horizontal & Vertical Lines Parallel & Perpendicular Lines Graphing Lines Point Slope Plug into formula (2,3) m=1y-3=1(x-2) Slope-intercept Plug in m, x, and y, (1,3) m=2 then solve for b. y=mx+b 3=2(1)+b y=2x+1 3=2+b b=1 X-intercept and Y-intercept
• Slide 16
• Equation w/ 2 points Horizontal & Vertical Lines Parallel & Perpendicular Lines Graphing Lines 1) Find the slope. 2) Use slope and 1 point to write the equation. (2,1) (3,5) 5-1 = 4 = 4 m = 4 3-2 1 y=mx+b 1 = 4(2)+b y = 4x + -7 1 = 8 + b y = 4x 7 -8 -7 = b X-intercept and Y-intercept
• Slide 17
• Horizontal & Vertical Lines Parallel & Perpendicular Lines Graphing Lines Vertical Lines x = 2 Horizontal Lines y = 2 x = -3y = -3 _____________________ X-intercept and Y-intercept
• Slide 18
• Parallel & Perpendicular Lines Graphing Lines X-intercept and Y-intercept y=2x+5 y=2x-3 y=2/3x 4 m=2/3 y=-3/2x + 2 m=-3/2
• Slide 19
• Graphing Lines Change the equation into slope-intercept form 1st X-intercept and Y-intercept
• Slide 20
• X-intercept: pt where the line crosses the x-axis Y-intercept: pt where the line crosses the y-axis To find the x-intercept: plug 0 in for y and solve for x 2x + 4y = 82x +4(0) = 8 2x = 8 x = 4 To find the y-intercept: plug 0 in for x and solve for y 2x + 4y = 82(0) + 4y = 8 4y = 8 y = 2 To graph: Find the x-intercept and y-intercept plot the intercepts draw the line connecting them

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