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Slope-Intercept Form: Classroom Packet

Grade 8 Algebra: Slope-Intercept Form

Name: ______________________Date: ____________Score: ____ / 8

Level 1

Reading m and b

  1. 1. Find the slope m and y-intercept b:
    y=2x+3y = 2x + 3
  2. 2. Find the slope m and y-intercept b:
    y=5x−1y = 5x - 1
  3. 3. Find the slope m and y-intercept b:
    y=−3x+4y = -3x + 4
  4. 4. Find the slope m and y-intercept b:
    y=x+7y = x + 7
  5. 5. Find the slope m and y-intercept b:
    y=−x−2y = -x - 2
  6. 6. Find the slope m and y-intercept b:
    y=4xy = 4x
  7. 7. Find the slope m and y-intercept b:
    y=6x−5y = 6x - 5
  8. 8. Find the slope m and y-intercept b:
    y=−2x+9y = -2x + 9

Answer Key

Level 1

  1. 1. m=2, b=3m = 2,\ b = 3
  2. 2. m=5, b=−1m = 5,\ b = -1
  3. 3. m=−3, b=4m = -3,\ b = 4
  4. 4. m=1, b=7m = 1,\ b = 7
  5. 5. m=−1, b=−2m = -1,\ b = -2
  6. 6. m=4, b=0m = 4,\ b = 0
  7. 7. m=6, b=−5m = 6,\ b = -5
  8. 8. m=−2, b=9m = -2,\ b = 9

Grade 8 Algebra: Slope-Intercept Form

Name: ______________________Date: ____________Score: ____ / 8

Level 2

Fractions and rearranged forms

  1. 1. Find the slope m and y-intercept b:
    y=12x+6y = \tfrac{1}{2}x + 6
  2. 2. Find the slope m and y-intercept b:
    y=−34x−2y = -\tfrac{3}{4}x - 2
  3. 3. Find the slope m and y-intercept b:
    y=8−3xy = 8 - 3x
  4. 4. Find the slope m and y-intercept b:
    y=−xy = -x
  5. 5. Find the slope m and y-intercept b:
    y=5y = 5
  6. 6. Find the slope m and y-intercept b:
    y=23xy = \tfrac{2}{3}x
  7. 7. Find the slope m and y-intercept b:
    y=−4+15xy = -4 + \tfrac{1}{5}x
  8. 8. Find the slope m and y-intercept b:
    y=0.5x−1.5y = 0.5x - 1.5

Answer Key

Level 2

  1. 1. m=12, b=6m = \tfrac{1}{2},\ b = 6
  2. 2. m=−34, b=−2m = -\tfrac{3}{4},\ b = -2
  3. 3. m=−3, b=8m = -3,\ b = 8
  4. 4. m=−1, b=0m = -1,\ b = 0
  5. 5. m=0, b=5m = 0,\ b = 5
  6. 6. m=23, b=0m = \tfrac{2}{3},\ b = 0
  7. 7. m=15, b=−4m = \tfrac{1}{5},\ b = -4
  8. 8. m=12, b=−32m = \tfrac{1}{2},\ b = -\tfrac{3}{2}

Grade 8 Algebra: Slope-Intercept Form

Name: ______________________Date: ____________Score: ____ / 8

Level 3

Rewriting into y = mx + b

  1. 1. Write in slope-intercept form, then give m and b:
    2x+y=72x + y = 7
  2. 2. Write in slope-intercept form, then give m and b:
    y−4x=1y - 4x = 1
  3. 3. Write in slope-intercept form, then give m and b:
    3x+3y=123x + 3y = 12
  4. 4. Write in slope-intercept form, then give m and b:
    2y=6x−82y = 6x - 8
  5. 5. Write in slope-intercept form, then give m and b:
    4x−2y=104x - 2y = 10
  6. 6. Write in slope-intercept form, then give m and b:
    x+2y=6x + 2y = 6
  7. 7. Write in slope-intercept form, then give m and b:
    3x−4y=83x - 4y = 8
  8. 8. Write in slope-intercept form, then give m and b:
    5y+10=2x5y + 10 = 2x

Answer Key

Level 3

  1. 1. y=−2x+7, m=−2, b=7y = -2x + 7,\ m = -2,\ b = 7
  2. 2. y=4x+1, m=4, b=1y = 4x + 1,\ m = 4,\ b = 1
  3. 3. y=−x+4, m=−1, b=4y = -x + 4,\ m = -1,\ b = 4
  4. 4. y=3x−4, m=3, b=−4y = 3x - 4,\ m = 3,\ b = -4
  5. 5. y=2x−5, m=2, b=−5y = 2x - 5,\ m = 2,\ b = -5
  6. 6. y=−12x+3, m=−12, b=3y = -\tfrac{1}{2}x + 3,\ m = -\tfrac{1}{2},\ b = 3
  7. 7. y=34x−2, m=34, b=−2y = \tfrac{3}{4}x - 2,\ m = \tfrac{3}{4},\ b = -2
  8. 8. y=25x−2, m=25, b=−2y = \tfrac{2}{5}x - 2,\ m = \tfrac{2}{5},\ b = -2