Question

a car travels down a highway at a constant speed shown in the graph below. find the speed of the car. kilometers per hour

Explanation:

Step1: Recall the formula for speed

Speed \(v=\frac{d}{t}\), where \(d\) is distance and \(t\) is time.

Step2: Identify values from the graph

From the graph, when \(t = 1\) hour, \(d=80\) kilometers.

Step3: Calculate the speed

Substitute \(d = 80\) and \(t = 1\) into the formula \(v=\frac{d}{t}\). So \(v=\frac{80}{1}=80\) kilometers per hour.

Answer:

80