Answer:
Step-by-step explanation:
y-value is 0 and the x value is 5
h = 2
k = -1
Solve for 
(the coefficient of the squared term).
The coefficient of the squared term in the parabola equation is 1/9.
Answer:
b = 3 or -3 i suppose
Step-by-step explanation:
The equation in y = mx+b form is y = -450x+2745
where,
x = number of hours that have passed by
y = distance to destination in miles
The y intercept is 2745 since this is the initial starting y value, aka the starting distance. Therefore b = 2745.
The slope is -450 or -450/1 since for each hour, the distance goes down by 450. You can think of it as
slope = (change in y)/(change in x)
slope = (change in distance)/(change in time)
slope = (-450 miles)/(1 hour)
slope = -450
