1.
Use the graph to determine the solution of -
x
2
+ 6
x
- 9 = 0.
A.
4
B.
-9
C.
2
D.
3
Hint
2.
Solve the equation
w
2
- 4
w
= 12 by graphing.
A.
-2, 6
B.
6
C.
0, -3
D.
1, 4
Hint
3.
Solve
y
2
+ 8
y
+ 16 = 0 by factoring.
A.
-4, 4
B.
4, 8
C.
-4
D.
4
Hint
4.
Solve
m
2
- 2
m
= 15 by factoring.
A.
3
B.
5
C.
-5, 3
D.
-3, 5
Hint
5.
Solve 0 =
x
2
+ 4
x
+ 5 by graphing.
A.
1, –5
B.
–1, 5
C.
2
D.
no real roots
Hint