1 of 10 · constant-k-c01
y = 7x. What is k?
Practice: The number that never changes
Camp
Correct answers and your place save in this browser.
How saving works
The count shows questions with a correct latest check, not how many you visited. Skipping or opening a walkthrough does not raise it. Answers and your place save in this browser only; another device, browser, or link may have a separate notebook. Clearing browser data removes saved work. A later wrong check lowers the correct count. This is practice, not a grade.
Start with the main idea. One round, 10 questions in order. You can skip or pause. Check as you go. Open Walkthrough for help with this question, or open the solution key for the whole round.
Print this page for the round you have selected. Practice prints questions and working space. The solution key prints steps and answers.
The number that never changes · Camp
2 of 10 · constant-k-c02
When x = 4, y = 20. If this is proportional, what is k?
3 of 10 · constant-k-c03
Assume y is proportional to x. When x = 8, y = 2. What is k?
4 of 10 · constant-k-c04
Assume y is proportional to x. A table: (3, 12), (5, 20), (6, 24). What is k?
| x | y |
|---|---|
| 3 | 12 |
| 5 | 20 |
| 6 | 24 |
5 of 10 · constant-k-c05
A line through (0,0) and (9, 36). What is k?
6 of 10 · constant-k-c06
In y = kx, k = 6 and x = 11. What is y?
7 of 10 · constant-k-c07
In y = kx, k = 2.5 and y = 15. What is x?
8 of 10 · constant-k-c08
Is a line through (0, 4) and (2, 10) proportional? Type yes or no.
9 of 10 · constant-k-c09
A recipe uses 2 cups of water for every 3 cups of mix. Water is y, mix is x. What is k? Give an exact fraction.
10 of 10 · constant-k-c10
y = (3/4)x. What is k as a fraction?