Question 7 Answer & Explanation - SAT Algebra

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algebra

A graph of distance vs. time is a straight line. What does the slope represent?

Speed

Distance

Time

Acceleration

Correct Answer: A

Choice A is the correct answer. Rate of change definition.

Slope: $\frac{\Delta y}{\Delta x} = \frac{\text{Change in Distance}}{\text{Change in Time}}$ .
Physics: Distance / Time = Speed (or Velocity).

💡 Strategic Tip: The slope of a position-time graph is velocity.

Choice B is incorrect.Choice C is incorrect.Choice D is incorrect because acceleration is the slope of a velocity-time graph.

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