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 (\(45\) to \(43\) to \(41\)) then increases (\(41\) to \(42\) to \(43\)), which is not increase - then - decrease.

Step2: Analyze the second table

Check the speed values: \(45,47,49,48,47\). The speed first increases (\(45\) to \(47\) to \(49\)) then decreases (\(49\) to \(48\) to \(47\)), which matches the requirement.

Step3: Analyze the third table

Check the speed values: \(45,45,45,43,41\). The speed remains constant (\(45,45,45\)) then decreases (\(45\) to \(43\) to \(41\)), which is not increase - then - decrease.

Step4: Analyze the fourth table

Check the speed values: \(45,43,41,41,41\). The speed only decreases (\(45\) to \(43\) to \(41\)), which is not increase - then - decrease.

Answer:

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