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WRITING LINEAR EQUATIONS

WRITING LINEAR EQUATIONS. USING THE SLOPE-INTERCEPT FORM GIVEN 2 POINTS. Y=-2/3x+1. Y=7x-10. Y=7x-3. Warm-up. Write the equation of a line of the following lines. 1. (0,1). 2. 3. Slope = 7 A(2,4) B(4,-1). Slope = 7 Y-intercept= -3. (3,-1). -15. y 2 - y 1. 4 - 9. -5. -15.

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WRITING LINEAR EQUATIONS

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  1. WRITING LINEAR EQUATIONS • USING THE SLOPE-INTERCEPT FORM • GIVEN 2 POINTS

  2. Y=-2/3x+1 Y=7x-10 Y=7x-3 Warm-up Write the equation of a line of the following lines 1 (0,1) 2 3 Slope = 7 A(2,4) B(4,-1) Slope = 7 Y-intercept= -3 (3,-1)

  3. -15 y2 - y1 4 - 9 -5 -15 Y = -5X - 6 -6 5 Slope = Y-int= = x2 - x1 Finding equation of a line given 2 points: y1 x1 x2 y2 A(3,9) B(2,4) Step 2 Step 1 Step 3 Find the slope Find the y-int substitute Y = mX + b Y = mX + b Slope = 9 = (5) 3 + b Slope = 9 = 15 + b - 1 2 - 3 -6 = b

  4. -36 y2 - y1 6 - 2 4 -36 Y = 4X - 34 -34 4 Slope = Y-int= = x2 - x1 Your Turn! y1 x1 x2 y2 A(9,2) B(10,6) Step 2 Step 1 Step 3 Find the slope Find the y-int substitute Y = mX + b Y = mX + b Slope = 2 = (4) 9 + b Slope = 2 = 36+ b 1 10 - 9 -34 = b

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