1.
Which table shows a correct set of values for the quadratic function
y
= –
x
2
– 4
x
+ 5?
A.
B.
C.
D.
Hint
2.
The roots of the quadratic equation 2
x
2
+ 4
x
– 30 = 0 are ___________.
A.
3 and –5
B.
–3 and –5
C.
–3 and 5
D.
3 and 5
Hint
3.
The roots of the quadratic equation
x
2
– 6
x
– 16 are __________.
A.
2 and –8
B.
6 and 16
C.
-6 and -16
D.
-2 and 8
Hint
4.
Estimate the roots of 2
x
2
+ 3
x
– 4.
A.
between 0 and 1, between -3 and -2
B.
between 0 and -1, between 2 and 3
C.
between 2 and 3, between -4 and -3
D.
between -3 and -2, between -4 and -3
Hint
5.
Find two numbers whose sum is 15 and whose product is 36.
A.
4 and 8
B.
5 and 10
C.
6 and 9
D.
3 and 12
Hint