Answer:
(-1,-2)
Step-by-step explanation:
Let's bring back to memory vertex formula for parabolas.

Where (h,k) is the vertex.
In 
The vertex is (-1,-2)
Answer:
a
Step-by-step explanation:
The third term of the sequence is 20
Answer:
45
Step-by-step explanation:
Divide 30 by 10. You get 3. Take three and multiply it by 15. Your answer is 45.
Answer:
what is another point Sally could have plotted