The decimal for 1/2 is 0.5
Answer:
a=1
b=4
c=-1
Axis of cemetry and vertex:x=-2
Step-by-step explanation:
x=-b/2a
x=-4/2(1)
x=-2
9x-y = 45
Move 9x to the other side. Sign changes from +9x to -9x.
9x-9x-y=45-9x
-y=45-9x
Multiply both sides by -1
(-1)(-y)=y
(-1)(45)=-45
(-1)(-9x)
y=-45+9x or y=9x-45
Answer: y=-45+9x or y=9x-45
