Worth 55 points + Brainliest to the person with the best answer Question: Which unit rate corresponds to the proportional relationship shown in the graph? Drag and drop the answer into the box to match the graph with its rate.

Answer choices: (1) 1/5 cm/s (2)1/4 cm/s (3) 4/5 cm/s (4)5/4 cm/s

5/4

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check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.