Answer:
We have to use the formule to calculate the vertex which is: V(-b/2a;4ac-b^2/4a)
A) y=x+7 where a=1 b=0 and c=7
By replacing we have: V(0;28/4) V(0;7)
B) y=-x where a=-1 b and c=0 so V(0,0)
Y/x=k
when y=9, then x= -3
9/-3=-3
⇒ k= -3
Answer:
1.6-5 2. 42 3. 36/66
Step-by-step explanation:
Answer:
B, -12
Step-by-step explanation:
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