Answer:
<em>2.25</em>
Step-by-step explanation:
<em>k</em> = 13.5 ÷ 6 = 11.25 ÷ 5 = 4.5 ÷ 2 = <em>2.25</em>
x = 3
the speed of the plane was 210 mph.
or
To find slope we use the slope formula
Two points on the line we can classify are (3,4) and (4,8)