1.
Solve
x
2
+ 4
x
+ 4 = 0 by graphing.
A.
-2, 2
B.
-4, 4
C.
4
D.
-2
Hint
2.
Solve
a
2
+ 16 = 0 by graphing.
A.
-4
B.
4
C.
D.
-4, 4
Hint
3.
A quadratic function has a maximum point at (1, 4). The roots of the related quadratic equation are -1 and 3. Which is the graph of the function?
A.
B.
C.
D.
Hint
4.
The sum of two numbers is 12, and the product of the numbers is 36. What are the numbers?
A.
6 and 9
B.
9 and 4
C.
7 and 5
D.
6 and 6
Hint
5.
The sum of two numbers is 2, and the product is 3. What are the numbers?
A.
–1 and 3
B.
no solution
C.
1 and –3
D.
1 and 1
Hint