Question

a car increases, then decreases, its speed. which table could represent the speed of the car?

Explanation:

Step1: Analyze the first table

Check the speed values: \(45,43,41,42,43\). The speed first decreases (\(45\to43\to41\)) then increases (\(41\to42\to43\)), which is not “increase then decrease”.

Step2: Analyze the second table

Check the speed values: \(45,47,49,48,47\). The speed first increases (\(45\to47\to49\)) then decreases (\(49\to48\to47\)), which matches “increase then decrease”.

Step3: Analyze the third table

Check the speed values: \(45,45,45,43,41\). The speed is constant (\(45,45,45\)) then decreases (\(45\to43\to41\)), which is not “increase then decrease”.

Step4: Analyze the fourth table

Check the speed values: \(45,43,41,41,41\). The speed only decreases (\(45\to43\to41\)), which is not “increase then decrease”.

Answer:

The second table (with speed values \(45,47,49,48,47\))