1.
Use the graph to determine the solution(s) of
x
2
-
x
- 6 = 0.
A.
-2
B.
-2, 3
C.
-3, 2
D.
-6
Hint
2.
Find two real numbers whose sum is 12 and whose product is 32.
A.
no solution
B.
7 and 5
C.
8 and 4
D.
2.25 and 14.25
Hint
3.
Solve
by graphing.
A.
x
= 2
B.
x
= 0
C.
x
= 2
D.
no real roots
Hint
4.
A quadratic function has two real roots. How many times does the graph cross the
x
-axis?
A.
2
B.
cannot be determined from given information.
C.
1
D.
0
Hint
5.
Solve -
x
2
+ 3
x
+ 5 = 0 by graphing. If exact roots cannot be found, state the consecutive integers between which the roots are located.
A.
between 1 and 0, and between 4 and 5
B.
between 2 and -1, and between 4 and 5
C.
between 2 and1, and between 3 and 4
D.
between 1 and 0, and between 3 and 4
Hint