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 ÷ 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
2. 2.

   With the arrow ÷ 8 beside both columns. Esme fills the tub with 24 gallons in 8 minutes and adds extra bubbles. The table's next row is ÷ 8. What is the slope, in gallons per minute?

   3
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.

   Pia rides a bike path at a steady speed and rings the bell at every bridge. The graph shows hours and miles. What is the slope of the line, in miles per hour?

   8
6. 6.

   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
7. 7.

   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
8. 8.

   Ari's bike line has slope 12. Its graph shows hours across and miles up. Which sentence says what the slope means?

   • 12 miles in all
   • The line starts at 12 miles
   • 12 hours for each 1 mile
   • 12 miles for each 1 hour
9. 9.

   Bo's printer line has slope 20. Its graph shows minutes across and pages up. Which sentence says what the slope means?

   • 20 pages in all
   • The line starts at 20 pages
   • 20 minutes for each 1 page
   • 20 pages 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 for each 1 minute
    • 2 pages in all
    • The line starts at 2 pages
    • 2 minutes for each 1 page