To determine if \( x \) (time in hours) and \( y \) (distance in miles) have a proportional relationship, we can check if the ratio of \( y \) to \( x \) is constant for all pairs of values.
Let's compute the ratios:
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For \( x = 1 \), \( y = 14 \): \[ \text{Ratio} = \frac{y}{x} = \frac{14}{1} = 14 \]
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For \( x = 2 \), \( y = 28 \): \[ \text{Ratio} = \frac{y}{x} = \frac{28}{2} = 14 \]
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For \( x = 3 \), \( y = 42 \): \[ \text{Ratio} = \frac{y}{x} = \frac{42}{3} = 14 \]
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For \( x = 5 \), \( y = 70 \): \[ \text{Ratio} = \frac{y}{x} = \frac{70}{5} = 14 \]
Since the ratio \( \frac{y}{x} \) is constant (14) for all pairs of values, \( x \) and \( y \) do have a proportional relationship.
Therefore, the answer is yes.