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Similar to Lesson 5.8 honors
Similar to Lesson 5.8 honors (20)
Lesson 5.8 honors
- 3. Graphing a Quadratic Inequality
4. y ≤ x + 4 x + 4
2
Vertex:
4
4
b
=−
−
2
1
2 (a )
2
y = (− 2) + 4( − 2) + 4
y = 4 −8 + 4 = 0
( − 2,
0
Solid
Check (0,0)
0≤4
Normal Graph
)
- 4. Graphing a Quadratic Inequality
5. y ≥ 3 x − 12
2
0
0
b
=−
−
6
3
2 (a )
2
y = 3( 0 ) − 12
y = 0 − 12 = −12
Check (0,0)
0 ≥ −12
Vertex:
( 0, − 12)
Solid
- 5. Graphing a Quadratic Inequality
6. y ≤ x − 10 x + 9
2
Vertex:
− 10
10
b
=
−
2
1
2 (a)
2
y = ( 5 ) − 10( 5 ) + 9
y = 25 − 50 + 9
Check (0,0)
0≤9
( 5, − 16)
Solid
- 6. Graphing a Quadratic Inequality
6. y ≤ x − 10 x + 9
2
Vertex:
− 10
10
b
=
−
2
1
2 (a)
2
y = ( 5 ) − 10( 5 ) + 9
y = 25 − 50 + 9
Check (0,0)
0≤9
( 5, − 16)
Solid