1. 15/4 (2w+3)^2 - 135/4
2. w(15w+45)
X_>-2*4
x_>-8
Answer: x> -8
First, we need her speed as it will serve as the slope of the equation.
Distance = 2 km
time = 18 min
Speed = 1/9 km/min
k = (1/9)t
Where k is the distance in km and t is the time in minutes.