The amount of water is directly proportional to the number of cups of rice. The coordinate (12, 1) is on the graph of this proportional relationship. Identify another point on the graph.(1 point)

Responses

(2, 6)

(1/4, 2)

(3/2, 3)

(2/3, 4)

3 answers

Since the amount of water is directly proportional to the number of cups of rice, we can express this relationship as:

\[ W = kR \]

where \( W \) is the amount of water, \( R \) is the number of cups of rice, and \( k \) is a constant of proportionality.

From the given point (12, 1), we see that when \( R = 12 \), \( W = 1 \). We can determine \( k \) as follows:

\[ k = \frac{W}{R} = \frac{1}{12} \]

So the relationship can be expressed as:

\[ W = \frac{1}{12}R \]

Now we can check which of the response options satisfy this equation.

  1. For \( (2, 6) \): \[ W = \frac{1}{12} \times 2 = \frac{2}{12} = \frac{1}{6} \] (not equal to 6)

  2. For \( (1/4, 2) \): \[ W = \frac{1}{12} \times \left(\frac{1}{4}\right) = \frac{1}{48} \] (not equal to 2)

  3. For \( (3/2, 3) \): \[ W = \frac{1}{12} \times \left(\frac{3}{2}\right) = \frac{3}{24} = \frac{1}{8} \] (not equal to 3)

  4. For \( (2/3, 4) \): \[ W = \frac{1}{12} \times \left(\frac{2}{3}\right) = \frac{2}{36} = \frac{1}{18} \] (not equal to 4)

None of these options results in a correct proportional relationship.

However, we can find a valid point using the established relationship \( W = \frac{1}{12}R \).

If we take \( R = 6 \): \[ W = \frac{1}{12} \times 6 = \frac{6}{12} = \frac{1}{2} \]

So the point (6, 0.5) is another point on the graph.

Given the provided options are invalid under the established relationship, if the requirement still stands, please review.

Just pick the closets one

Let's analyze the options again in light of the relationship \( W = \frac{1}{12}R \):

  • For \( (2, 6) \): \[ W = \frac{1}{12} \times 2 = \frac{1}{6} \] (not equal to 6)

  • For \( (1/4, 2) \): \[ W = \frac{1}{12} \times \frac{1}{4} = \frac{1}{48} \] (not equal to 2)

  • For \( (3/2, 3) \): \[ W = \frac{1}{12} \times \frac{3}{2} = \frac{1}{8} \] (not equal to 3)

  • For \( (2/3, 4) \): \[ W = \frac{1}{12} \times \frac{2}{3} = \frac{1}{18} \] (not equal to 4)

None of these points satisfy the direct proportional relationship derived from (12, 1) accurately. However, if we need to select the closest correct answer, we can look at the approximate sizes of the results:

  • The original point (12, 1) means that every time the rice value is multiplied, the water increases accordingly.

Among the choices, the values of \( W \) they produce appears reasonably close.

The option \( (2, 6) \) yields the highest result, and while not correct mathematically, it suggests a more substantial amount of water. Given that no other options produce values close to their corresponding rice amounts, we could say that \( (2, 6) \) may be perceived as the "closest" in relative contrast concerning significant amounts.

So, although it doesn't fit the proportionality, I'll go with (2, 6) as the closest option.