Answer:

Step-by-step explanation:

Cos 300 = Cos ( 360 - 60)
= Cos 60

Shifted up
For example: if f(x) = x^2 + 4, the parent function has a vertex at (0,0), but the +4 shifts the graph up 4 units on the y-axis so the vertex would be (0,4)
a+b+c=-1
a=1
b=-1
c=-1
So for this u just replace the letters
not sure about x+y=7
Answer:
well its a
Step-by-step explanation:
its a c and d