The parabola opens down, since the 'a' value of the equation is a negative value.
Answer:
160
Step-by-step explanation:
Answer:
5+b=11
Step-by-step explanation:
Answer:
(a) 
(b) 
Step-by-step explanation:
Solving (a):

Add 1 to both sides


Solve for x


Solving (b):

Solve for x

