which graph could represent a car that begins...
which graph could represent a car that begins by increasing its speed, then travels at a constant speed, and then decreases its speed, as time increases?\nspeed (miles per minute)\ntime (minutes)\nspeed (miles per minute)
Answer
# Explanation:
## Step1: Analyze speed - increase
When the car is increasing its speed, the speed - time graph should have a positive slope. This means the line is going upwards as time (x - axis) increases and speed (y - axis) increases.
## Step2: Analyze constant speed
When the car is traveling at a constant speed, the speed - time graph should be a horizontal line. This is because the speed value on the y - axis does not change as time on the x - axis increases.
## Step3: Analyze speed - decrease
When the car is decreasing its speed, the speed - time graph should have a negative slope. This means the line is going downwards as time (x - axis) increases and speed (y - axis) decreases.
The given graph with an upward - sloping line first, then a horizontal line, and then a downward - sloping line satisfies these conditions.
# Answer:
The first graph (the one with an upward - sloping line initially, followed by a horizontal line, and then a downward - sloping line)