Use the image to answer the question.

A number line ranges from negative 10 to 10 with numbers listed in unit increments. An open point is plotted on the number line at 6 start fraction 2 over 3 end fraction. A rightward arrow is marked on the number line that originates at the open circle and goes beyond 10.

Bashira solved an inequality and graphed the solution on the number line. Which of the following inequalities did she solve?

(1 point)
Responses

15x>113
Start Fraction 1 over 5 end fraction x greater than 1 Start Fraction 1 over 3 end fraction

13x>225
Start Fraction 1 over 3 end fraction x greater than 2 Start Fraction 2 over 5 end fraction

12x>314
Start Fraction 1 over 2 end fraction x greater than 3 Start Fraction 1 over 4 end fraction

14x>212

1 answer

The open point plotted at \( 6 \frac{2}{3} \) (which is equal to \( \frac{20}{3} \) or approximately 6.67) on the number line indicates that the solution to the inequality starts at this point and extends to the right towards positive infinity. This suggests that the correct inequality is one where \( x \) must be greater than \( 6 \frac{2}{3} \).

Let's analyze each provided response to check which one corresponds to this interval.

  1. \( 15x > 113 \): To solve for \( x \): \[ x > \frac{113}{15} \approx 7.53 \] (This is greater than \( 6 \frac{2}{3} \))

  2. \( \frac{1}{5}x > 1 \frac{1}{3} \): To solve for \( x \): \[ \frac{1}{5}x > \frac{4}{3} \implies x > \frac{4}{3} \cdot 5 = \frac{20}{3} \ \] (This corresponds to exactly \( 6 \frac{2}{3} \) since \( \frac{20}{3} = 6 \frac{2}{3} \))

  3. \( 13x > 225 \): To solve for \( x \): \[ x > \frac{225}{13} \approx 17.31 \] (This is much greater)

  4. \( \frac{1}{2}x > 3 \frac{1}{4} \): To solve for \( x \): \[ \frac{1}{2}x > \frac{13}{4} \implies x > \frac{13}{4} \cdot 2 = \frac{26}{4} = 6.5 \] (This is less than \( 6 \frac{2}{3} \))

  5. \( 14x > 212 \): To solve for \( x \): \[ x > \frac{212}{14} \approx 15.14 \] (This is much greater)

Thus, among the options given, the only inequality that represents the solution \( x > 6 \frac{2}{3} \) is:

\( \frac{1}{5}x > 1 \frac{1}{3} \).