Creating a foldable for Equations of Lines Equations of Lines Slope Slope-Intercept Form Standard Form Horizontal & Vertical Lines Graphing Lines X-intercept.

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Creating a foldable for Equations of Lines Equations of Lines Slope Slope-Intercept Form Standard Form Horizontal & Vertical Lines Graphing Lines X-intercept and Y-intercept

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

Slope-Intercept Form 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

Standard Form Formula:Ax+By=C -A can’t be negative -A,B,C must be whole #s

Horizontal & Vertical Lines Vertical Lines x = 2 Horizontal Lines y = 2 x = -3 y = -3

Graphing Lines Change the equation into slope-intercept form 1st

X-intercept and Y-intercept 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 and then plot the intercepts and draw the line connecting them