Absolute value equations

Answer Key - Grade 9 Math Worksheet

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

1. 1.

   Bo solves |x + 2| = 6 with a pencil. Which two numbers make it true, written with a comma between?

   -8, 4
2. 2.

   Jun solves |x + 5| = 1 on paper. Which two numbers make it true, written with a comma between?

   -6, -4
3. 3.

   Luz solves 3|x + 2| - 4 = 5 in a math notebook. Which two numbers make it true, written with a comma between?

   -5, 1
4. 4.

   Milo solves 2|x - 4| - 6 = 4 on paper. Which two numbers make it true, written with a comma between?

   -1, 9
5. 5.

   Noah solves 5|x + 3| + 2 = 22 with a pencil. Which two numbers make it true, written with a comma between?

   -7, 1
6. 6.

   Ren looks at |x + 1| = -4 with a pencil. How many numbers solve it?

   • One solution
   • No solution
   • Infinitely many solutions
   • Two solutions
7. 7.

   Zee looks at |x - 6| + 3 = 1 on paper. How many numbers solve it?

   • Two solutions
   • No solution
   • One solution
   • Infinitely many solutions
8. 8.

   Ari marks -1 and 7 on a number line on paper. Which equation has exactly these two solutions?

   • |x - 4| = 3
   • |x - 3| = 8
   • |x + 3| = 4
   • |x - 3| = 4
9. 9.

   Esme marks -9 and -3 on a number line in a math notebook. Which equation has exactly these two solutions?

   • |x - 6| = 3
   • |x + 6| = 3
   • |x - 3| = 6
   • |x + 6| = 6
10. 10.

    Jun marks -8 and 2 on a number line on paper. Which equation has exactly these two solutions?

    • |x - 3| = 5
    • |x - 5| = 3
    • |x + 3| = 5
    • |x + 3| = 10