Answer:
Concave down
Y-intercept: (0,-3)
X-intercepts: (-1,0) (-3,0)
Vertex: (-2,1)
Answer:
a over b if im not mistaken
Step-by-step explanation:
Answer:
it will take Tommy 30 minutes
Answer:
The distance is 20km
Step-by-step explanation:
Given

Required
The distance between
school
The function represents the distance 
So, when x = 0.
This implies that he has not started moving.
So:



Answer:
PQ ≈ 14.14 units
Step-by-step explanation:
calculate the distance d using the distance formula
d = 
with (x₁, y₁ ) = P (0, 4 ) and (x₂, y₂ ) = Q (10, - 6 )
PQ = 
= 
= 
= 
≈ 14.14 units ( to 2 dec. places )