answer Direct Variation
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
If y varies directly as x, then we can write y = kx for some constant k. To find k, we use the given information that y = 14 when x = 3:
14 = k(3)
Solving for k, we get k = 14/3. Now we can use this value of k to find y when x = 6:
y = (14/3)(6) = 28
Therefore, when x = 6, y = 28.
Using the same formula y = kx, we can find k by using the given information that y = 15 when x = 9:
15 = k(9)
Solving for k, we get k = 5/3. Now we can use this value of k to find y when x = 3:
y = (5/3)(3) = 5
Therefore, when x = 3, y = 5.
Using the formula y = kx and the given information that y = 15 when x = 3, we can find k:
15 = k(3)
Solving for k, we get k = 5. Now we can use this value of k to find y when x = 4:
y = (5)(4) = 20
Therefore, when x = 4, y = 20.
Using the formula y = kx and the given information that y = 3 when x = 7, we can find k:
3 = k(7)
Solving for k, we get k = 3/7. Now we can use this value of k to find y when x = 14:
y = (3/7)(14) = 6
Therefore, when x = 14, y = 6.