Answer:
The slope of the graph of plane A is 430, its speed is 430 miles per hour.
The slope of the graph of plane B is 460, its speed is 460 miles per hour.
Plane B is flying faster.
Step-by-step explanation:
The speed of the airplane is the slope of the function, that is, change in distance by change in time. From table, we notice that curve is a first order polynomial, also known that linear function:
Plane A
The slope of the graph of plane A is 430, its speed is 430 miles per hour.
Plane B
The slope of the graph of plane B is:
[tex]v = \frac{1840\,mi-460\,mi}{4\,h-1\,h}[/tex]
[tex]v = 460\,\frac{mi}{h}[/tex]
The slope of the graph of plane B is 460, its speed is 460 miles per hour.
Therefore, plane B is flying faster.
