Grade 9 · Math · Algebra 1

9th grade Find a missing coordinate when the slope is given worksheet

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Find a missing coordinate when the slope is given

Grade 9 Math Worksheet - Challenge Me

NameDate

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

The slope is 3/4. Esme's line has slope 3/4 and passes through (1, -2). Another point on the line is (9, y). What is y?
The slope is -1/2. Noah's line has slope -1/2 and passes through (6, 1). Another point on the line is (-2, y). What is y?
The slope is 5/3. Ari's line has slope 5/3 and passes through (2, 3). Another point on the line is (-1, y). What is y?
The slope is 2. Luz's line has slope 2 and passes through (5, 8). Another point on the line is (1, y), to the left. What is y?
The slope is -3. Tala's line has slope -3 and passes through (4, 1). Another point on the line is (-1, y), to the left. What is y?
The slope is 3/2. Jun's line has slope 3/2 and passes through (6, 7). Another point on the line is (0, y), to the left. What is y?
Each week the output changes by 3. Bo's plant is 12 cm tall in week 2 and grows 3 cm each week. In what week is it 27 cm tall?
Each hour the output changes by -150. Milo's water bottle holds 900 mL at hour 1 and loses 150 mL each hour. At what hour does it hold 300 mL?
The slope is 3/2. Zee's line has slope 3/2 and passes through (k, 2) and (7, 11). What is k?
The slope is 3. Ren's line has slope 3 and passes through (k, 2) and (9, 14). What is k?

Find a missing coordinate when the slope is given. Every version has 10 questions, and the answer key prints on the second page.

Standard: state-only (uses A-REI.B.3 and F-IF.B.6)

slope: How much y changes for 1 more x. Rise over run.

rise: The change in y between two rows.

run: The change in x between two rows.

Your child stopped before multiplying by the run.

Your child subtracted the rise instead of adding it.

Your child multiplied by the slope where they needed to divide.

Ask: if the slope is 3, how far does y change over 4 steps across?

Ask: does y go up or down when you go right on a rising line?

Ask: how many steps of the slope fit into the rise?

What is the most common mistake with find a missing coordinate when the slope is given?

Your child stopped before multiplying by the run.

How can I help my child with find a missing coordinate when the slope is given?

Ask: if the slope is 3, how far does y change over 4 steps across?

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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