Is it proportional?

Grade 7 Math Worksheet - Building Confidence

Circle the best answer.

1. Read this first

   Use the table

   hours	inches	inches for 1 hour
   1	4	4
   2	6	3
   3	8	8/3

2. 1.

   Bo measures the snow on the porch every hour, wearing two scarves. The table shows hours, inches, and inches for 1 hour. Is it proportional, and why?

   • No: hours and inches are different numbers
   • No: inches for 1 hour is 4 in row one but 3 in row two
   • Yes: inches go up by 2 every time hours go up by 1
3. 2.

   Luz plants seed trays in the garden, and one tray gets a tiny flag. The table shows trays, seeds, and seeds for 1 tray. Is it proportional, and why?

   • No: trays go up by 2, then by 5
   • No: trays and seeds are different numbers
   • Yes: every row has 4 seeds for 1 tray
4. 3.

   Kira walks a trail from a campsite that is already 4 miles past the trailhead. The table shows hours and miles from the trailhead. Is it proportional, and why?

   • Yes: miles go up by 3 every time hours go up by 1
   • No: hours and miles are different numbers
   • No: miles for 1 hour is 7 in row one but 5 in row two
5. 4.

   Pia times a garden snail that is in no rush. The table shows minutes and feet. Is it proportional, and why?

   • Yes: every row has 2/3 foot for 1 minute
   • No: feet go up by 2 each time, but minutes go up by 3
   • No: minutes and feet are different numbers
6. 5.

   Ari packs apples into bags for the school fair. The table shows bags and apples. Is it proportional, and why?

   • No: bags and apples are different numbers
   • No: bags go up by 1, then by 4
   • Yes: every row has 5 apples for 1 bag
7. 6.

   Esme's bathtub fills at a steady rate, with one rubber duck on watch. The graph shows minutes and gallons. Is it proportional, and why?

   • No: the line is not flat
   • Yes: it is a straight line through (0, 0)
   • No: it does not go through (1, 1), so the rate is not steady
8. 7.

   Kira scoots 5 miles every hour, never stopping. Is the distance proportional to the time, and why?

   • Yes: 5 miles for each hour, every hour
   • No: miles and hours are different units
   • No: the distance changes over time
9. 8.

   There are already 2 inches of snow when Milo starts, and 3 more inches fall every hour. Is the snow depth proportional to the time, and why?

   • No: the numbers are different
   • Yes: it grows by 3 inches every hour
   • No: at 0 hours there are already 2 inches
10. 9.

    Bo's lemonade uses 4 cups of water with every lemon. Is the water proportional to the lemons, and why?

    • Yes: 4 cups of water for each lemon, every time
    • No: it needs a starting amount
    • No: cups and lemons are different things
11. 10.

    Luz's bookmark is on page 20, and Luz reads 2 pages a minute. Is the page number proportional to the minutes, and why?

    • No: at 0 minutes the page number is already 20
    • No: reading is not a rate
    • Yes: it grows by 2 pages every minute