Answer:
Step-by-step explanation:Graph the parabola using the direction, vertex, focus, and axis of symmetry.
Direction: Opens Up
Vertex:
(
1
,
−
2
)
Focus:
(
1
,
−
7
4
)
Axis of Symmetry:
x
=
1
Directrix:
y
=
−
9
4
x
y
−
1
2
0
−
1
1
−
2
2
−
1
3
2
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()
Answer:
Let x be the number;
We solve the equation x ÷ 4 - 5 = 15;
Then x ÷ 4 = 20;
Finally x = 80;
Step-by-step explanation:
Replace y with 0 and you get x = -5.511, and x = 5.511, since time has to be positive, it takes approximately 5.51 seconds for the stone to hit the ground.
