Graph a line from y = mx + b, and make a table of values

Answer Key - Grade 8 Math Worksheet

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

1. 1.

   Ari fills a table of values for y = -3x + 4. What is y when x = 5?

   -11
2. 2.

   Esme fills a table of values for y = -4x − 1. What is y when x = -2?

   7
3. 3.

   Jun fills a table of values for y = 0.5x + 6. What is y when x = 8?

   10
4. 4.

   Kira graphs y = -2x + 5, starting where the line meets the y-axis, then moving 3 across along the line. Which point does Kira reach?

   (3, -1)
5. 5.

   Luz graphs y = -x + 2, starting where the line meets the y-axis, then moving 4 across along the line. Which point does Luz reach?

   (4, -2)
6. 6.

   Milo graphs y = 3x − 4, starting where the line meets the y-axis, then moving 3 across along the line. Which point does Milo reach?

   (3, 5)
7. 7.

   Pia checks points for the line y = 4x − 3. Which point is on the line?

   • (-1, -4)
   • (-1, -7)
   • (-7, -1)
   • (-1, 1)
8. 8.

   Ren checks points for the line y = -3x − 2. Which point is on the line?

   • (2, -8)
   • (2, -6)
   • (2, 4)
   • (-8, 2)
9. 9.

   Bo's line crosses the y-axis at 6 and rises 2 for each 1 to the right. What is y on the line at x = 7?

   20
10. 10.

    Esme's line crosses the y-axis at -3 and falls 4 for each 1 to the right. What is y on the line at x = 2?

    -11