Answer:
Step-by-step explanation:
so i plugged this into a graphing calculator.. maybe it's not fair to use technology :D
vertex (1,-9)
y intercept = -8
line of symmetry is x = 1
1) acceleration
2) speed
3) velocity
Answer:

Step-by-step explanation:
Use the Pythagoran Theorem
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- Age of Amy's younger sister=1year
☆Amy is 9 years older than her younger sister.

Let after x years Amy will be 4times old as her sister.
ATQ

- Using cross multiplication






