Mathematics
Grade 9
15 min
Write direct variation equations
Write direct variation equations
What you'll learn
- Identify pennies, nickels, dimes, and quarters by name.
- State the value of a penny, nickel, dime, and quarter in cents.
- Determine the total value of a group of coins (up to 5 coins) using addition.
- Match a coin to its written value (e.g., match a dime to '10 cents').
Tutorial Preview
1
y varies directly as x. If y = 10 when x = 2, write the equation.
2
y varies directly as x. If y = 12 when x = 4, what is y when x = 7?
3
y varies directly as x. If y = 15 when x = 3, what is x when y = 25?
Sample Practice Questions
Easy
y varies directly as x. If y = 6 when x = 2, write the equation.
0.y = 3x
1.y = 12x
2.y = x + 4
3.x = 3y
Easy
y varies directly as x. If y = 8 when x = 4, write the equation.
0.y = 0.5x
1.y = 2x
2.y = 32x
3.y = x + 4
Easy
y varies directly as x. If y = 10 when x = 5, what is y when x = 3?
0.5
1.6
2.15
3.8
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Frequently asked questions
What grade level is "Write direct variation equations"?
Write direct variation equations is a Grade 9 Mathematics lesson on ExcelOS.
What will I learn in Write direct variation equations?
You'll be able to: Identify pennies, nickels, dimes, and quarters by name; State the value of a penny, nickel, dime, and quarter in cents; Determine the total value of a group of coins (up to 5 coins) using addition.
Is "Write direct variation equations" free to practice?
Yes. You can read the tutorial preview for free, and signing up for a free ExcelOS account unlocks the full tutorial and all practice questions with instant feedback.
How many practice questions are included with Write direct variation equations?
This lesson includes 32 practice questions across multiple difficulty levels, each with instant feedback and explanations.