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Grade 9 · Math · Algebra 1

9th grade Point-slope form: graph a line from it, and write an equation in it worksheet

6 printable versionsBuilding Confidence10 questions · answer keyFree · no account

Level: Building Confidence · On Level · Challenge Me

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Point-slope form: graph a line from it, and write an equation in it

Grade 9 Math Worksheet - Building Confidence

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Circle the best answer, or write your answer on the line.

  1. Read this first

    Use this

    Input–output table (x | y). Read the point from the numbers with x and with y in y − 4 = 3(x − 2).

  2. Noah's line is y − 4 = 3(x − 2). Which point is on the line?

    • (2, 3)
    • (-2, -4)
    • (2, 4)
    • (4, 2)
  3. Use this

    Input–output table (x | y). Read the point from the numbers with x and with y in y + 1 = 2(x − 5).

  4. Ari's line is y + 1 = 2(x − 5). Which point is on the line?

    • (-5, 1)
    • (5, -1)
    • (5, 2)
    • (-1, 5)
  5. Use this

    Input–output table (x | y). Read the point from the numbers with x and with y in y − 6 = 4(x + 3).

  6. Luz's line is y − 6 = 4(x + 3). Which point is on the line?

    • (6, -3)
    • (-3, 6)
    • (3, -6)
    • (-3, 4)
  7. Use this

    Input–output table (x | y). Read the point from the numbers with x and with y in y + 7 = 5(x + 2).

  8. Tala's line is y + 7 = 5(x + 2). Which point is on the line?

    • (-2, -7)
    • (-2, 5)
    • (-7, -2)
    • (2, 7)
  9. Here m = 2, x1 = 1 and y1 = 4. Pia's line has slope 2 and passes through (1, 4). Use y − y1 = m(x − x1). What equation fits?

  10. Here m = 4, x1 = 3 and y1 = 6. Bo's line has slope 4 and passes through (3, 6). Use y − y1 = m(x − x1). What equation fits?

  11. Here m = 5, x1 = 2 and y1 = 1. Milo's line has slope 5 and passes through (2, 1). Use y − y1 = m(x − x1). What equation fits?

  12. Kira works on y − 5 = 2(x − 1). Distributing gives y − 5 = 2x − 2. What is b in y = 2x + b?

  13. Ren works on y − 1 = 4(x − 3). Distributing gives y − 1 = 4x − 12. What is b in y = 4x + b?

  14. Esme works on y − 9 = 5(x − 2). Distributing gives y − 9 = 5x − 10. What is b in y = 5x + b?

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9th grade Point-slope form: graph a line from it, and write an equation in it worksheet – printable
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About this worksheet

Point-slope form: graph a line from it, and write an equation in it. Every version has 10 questions, and the answer key prints on the second page.

What your child will learn

  • I can read a point and the slope from y − 4 = 3(x − 2).
  • I can write a line in point-slope form from a point and slope, or from two points.
  • I can change point-slope form to y = mx + b.

Standard: F-IF.C.7a, A-CED.A.2, F-LE.A.2

Words to know

point-slope form: y − y1 = m(x − x1): the line through (x1, y1) with slope m.

distribute: Multiply the slope by both terms in the bracket.

Common mistakes

Your child put the y of the point with x and the x with y.

Your child wrote the opposite signs in point-slope form.

Your child read the slope as part of the point.

What to say

Ask: in y − 4 = 3(x − 2), which number goes with y?

Ask: does y − 5 mean the point's y is 5 or -5?

Ask: which number multiplies the bracket?

Questions parents ask

What is the most common mistake with point-slope form: graph a line from it, and write an equation in it?

Your child put the y of the point with x and the x with y.

How can I help my child with point-slope form: graph a line from it, and write an equation in it?

Ask: in y − 4 = 3(x − 2), which number goes with y?

Are these 9th grade math worksheets free to print?

Yes. All 6 printable versions at each level are free to print, with the answer key, and no account is needed.

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