X and y intercepts Question # 12 - Chandler Unified School District

x and y intercepts Question # 12

3.4.1 determine slope x- and yintercepts of a linear equation

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2. What is the x-intercept for the graph of the equation 2x ? 5y = 15?

A. -15/2 B. -2/15 C. 15/2 D. 2/15

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Example 1. What is the y and x intercepts for the graph of the equation 2x ? 5y = 15?

To find the y-intercept, set x = 0, then solve for y.

2x ? 5y = 15 original equation

2(0) ? 5y = 15 set x = 0

Trick... instead of setting x or y to zero, just cover up the x or the y, and solve for the remaining variable.

-5y = 15 y = -3

Simplify divide both sides by -5

To find the x-intercept, set y = 0, then solve for y.

2x ? 5y = 15 original equation

2x ? 5(0) = 15 set y = 0

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2x = 15

Simplify

x = 15/2

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divide both sides by 2

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3. What is the y-intercept for the graph of the equation 5x ? 3y = 15?

A. -5 B. -3 C. 3 D. 5

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1. What is the y-intercept for the graph of the equation 2x ? 5y = 15?

A. -5 B. -3 C. 3 D. 5

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4. What is the x-intercept for the graph of the equation 2x ? 2y = 15?

A. -15/2 B. -2/15 C. 15/2 D. 2/15

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5. What is the y-intercept for the graph of the equation 3x ? 7y = 21?

A. -7 B. -3 C. 3 D. 7

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8. What is the y-intercept for the graph of the equation 3x ? 4y = 17?

A. 17/3 B. 3/17 C. -4/17 D. -17/4

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6. What is the x-intercept for the graph of the equation -x + 4y = 13?

A. 13/4 B. 4/13

C. -13

D. 13

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9. What is the x-intercept for the graph of the equation 3x ? 7y = 21?

A. -7 B. -3 C. 3 D. 7

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7. What is the y-intercept for the graph of the equation 2x - 4y = -8?

A. -4 B. -2 C. 2 D. 4

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10. What is the x-intercept for the graph of the equation 5x ? 3y = 21?

A. -1/7 B. -7

C. 21/5 D. 5/21

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11. What is the y-intercept for the graph of the equation 5x ? 3y = 15?

A. -5 B. -3 C. 3 D. 5

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14. What is the x-intercept for the graph of the equation y = 3x + 6?

A. 6

B. -1/2

C. -2

D. 2

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12. What is the x-intercept for the graph of the equation 3x ? 4y = -5?

A. -5/4 B. 5/4 C. -3/5 D. -5/3

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15. What is the y-intercept for the graph of the equation 3x - 9y = -18?

A. -6 B. -2 C. 2 D. 6

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13. What is the y-intercept for the graph of the equation y = 3x - 3?

A. - 1/3 B. -3

C. 3 D. 1/3

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16. What is the y-intercept for the graph of the equation 3x + 4y = -17?

A. 17/3 B. 3/17 C. -4/17 D. -17/4

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17. What is the y-intercept for the graph of the equation 4x - 2y = -8?

A. -4 B. -2 C. 2 D. 4

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20. What is the y-intercept for the graph of the equation 2x + 5y = 15?

A. -5 B. -3 C. 3 D. 5

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18. What is the y-intercept for the graph of the equation 4x + 3y = -17?

A. -17/3 B. -3/17 C. -4/17 D. -17/4

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1. B 5. B 9. D 13. B 17. D

Answers Question #12 x and y intercepts

2. C 6. C 10. C 14. C 18. A

3. A 7. C 11. A 15. C 19. A

4. C 8. D 12. D 16. D 20. C

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19. What is the x-intercept for the graph of the equation 4x + 3y = -5?

A. -5/4 B. 5/4 C. -3/5 D. -5/3

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