Find a missing coordinate when the slope is given
Grade 9 Math Worksheet
Circle the best answer, or write your answer on the line.
The slope is -2. Kira's line has slope -2 and passes through (4, 9). Another point on the line is (8, y). What is y?
The slope is 3. Ren's line has slope 3 and passes through (2, -4). Another point on the line is (6, y). What is y?
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Input–output table
x y 1 7 5 ? The slope is -3.
Noah's line has slope -3 and passes through (1, 7). Another point on the line is (5, y). What is y?
Luz's line has slope -3 and passes through (2, 10). Another point on the line is (x, -8). What is x?
The slope is 4. Jun's line has slope 4 and passes through (3, -2). Another point on the line is (x, 22). What is x?
The slope is 5. Pia's line has slope 5 and passes through (1, 2). Another point on the line is (x, 27). What is x?
The slope is 3. Slope = change in y ÷ change in x. Bo's line has slope 3 and passes through (1, 2) and (7, y). Which equation can be solved to find y?
- (y − 2) ÷ (1 − 7) = 3
- (y − 2) ÷ (7 − 1) = 3
- (y + 2) ÷ (7 + 1) = 3
- (7 − 1) ÷ (y − 2) = 3
The slope is 2. Slope = change in y ÷ change in x. Milo's line has slope 2 and passes through (2, 3) and (8, y). Which equation can be solved to find y?
- (y − 3) ÷ (8 − 2) = 2
- (y − 3) ÷ (2 − 8) = 2
- (y + 3) ÷ (8 + 2) = 2
- (8 − 2) ÷ (y − 3) = 2
The slope is 4. Slope = change in y ÷ change in x. Zee's line has slope 4 and passes through (1, 3) and (4, y). Which equation can be solved to find y?
- (y − 3) ÷ (4 − 1) = 4
- (4 − 1) ÷ (y − 3) = 4
- (y + 3) ÷ (4 + 1) = 4
- (y − 3) ÷ (1 − 4) = 4
The slope is 5. Slope = change in y ÷ change in x. Kira's line has slope 5 and passes through (4, 2) and (7, y). Which equation can be solved to find y?
- (7 − 4) ÷ (y − 2) = 5
- (y − 2) ÷ (7 − 4) = 5
- (y − 2) ÷ (4 − 7) = 5
- (y + 2) ÷ (7 + 4) = 5