1.
Use the quadratic formula to solve 3
y
2
+ 2 = 8
y
. Approximate the solutions to the nearest hundredth.
A.
-0.64, 1.32
B.
0.28, 2.39
C.
0.56, 4.77
D.
0.43, 2.87
Hint
2.
Which method of solving quadratic equations is best suited for the equation
x
2
– 18
x
= 0
A.
quadratic formula
B.
completing the square
C.
graphing
D.
factoring
Hint
3.
How many real roots exist if the discriminant of the equation = 0?
A.
0
B.
cannot be determined from given information
C.
1
D.
2
Hint
4.
How many real roots are there for the equation 2
x
2
+ 6
x
+ 3?
A.
cannot be determined from given information
B.
0
C.
1
D.
2
Hint
5.
Which of the following equations will have exactly 1 real root?
A.
2
x
2
+ 5
x
– 16
B.
4
x
2
– 8
x
+ 4
C.
9
x
2
+ 12
x
– 4
D.
x
2
– 6
x
– 9
Hint