Graph a steady rate: the unit rate is the slope

Answer Key - Grade 8 Math Worksheet - Building Confidence

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

1. 1.

   With the arrow ÷ 4 beside both columns. Ari's printer prints 100 pages in 4 minutes, while a very proud stapler watches. The table's next row is ÷ 4. What is the slope, in pages per minute?

   25
2. 2.

   With the arrow ÷ 2 beside both columns. Bo bikes 30 miles in 2 hours and waves at every goose. The table's next row is ÷ 2. What is the slope, in miles per hour?

   15
3. 3.

   With the arrow ÷ 10 beside both columns. Jun's snail crawls 5 inches in 10 minutes and refuses to hurry. The table's next row is ÷ 10. What is the slope, in inches per minute?

   1/2
4. 4.

   Kira's reading graph is a straight line. A slope triangle under it has run 8 minutes and rise 32 pages. What is the slope, in pages per minute?

   4
5. 5.

   A faucet fills Luz's bucket at a steady rate. The slope triangle has run 3 minutes and rise 15 quarts. What is the slope, in quarts per minute?

   5
6. 6.

   Milo's cookie recipe graph is a straight line, and the dough taster is hopeful. Its slope triangle has run 4 batches, rise 12 cups of flour. What is the slope, in cups per batch?

   3
7. 7.

   Ren scoots to school at a steady pace and says hi to every mailbox. The graph shows minutes and blocks. What is the slope of the line, in blocks per minute?

   3
8. 8.

   Zee weaves a rug at a steady speed, with a very interested pet cat nearby. The graph shows hours and inches woven. What is the slope of the line, in inches per hour?

   6
9. 9.

   Esme's snail line has slope 1/2. Its graph shows minutes across and inches up. Which sentence says what the slope means?

   • The line starts at 1/2 inch
   • 1/2 inch in all
   • 1/2 minute for each 1 inch
   • 1/2 inch for each 1 minute
10. 10.

    Jun's reading line has slope 2. Its graph shows minutes across and pages up. Which sentence says what the slope means?

    • 2 pages in all
    • 2 pages for each 1 minute
    • The line starts at 2 pages
    • 2 minutes for each 1 page