1.
If-then statements are also called ______________.
A.
conditionals
B.
hypotheses
C.
reasons
D.
conclusions
Hint
2.
To show that a conjecture is false, you need to provide one _____.
A.
guess
B.
counterexample
C.
theorem
D.
possibility
Hint
3.
Which values are a counterexample to the given statement?
If
x
+
y
= an even number, then
x
is even and
y
is even.
A.
x
= 7,
y
= 12
B.
x
= 10,
y
= 9
C.
x
= 21,
y
= 3
D.
x
= 12,
y
= 6
Hint
4.
Identify the hypothesis in the following algebraic statement:
If 3
x
+ 10 = 13, then
x
= 1.
A.
x
= 1
B.
3
x
C.
3
x
+ 10
D.
3
x
+ 10 = 13
Hint
5.
A conditional statement consists of a __________ .
A.
conclusion only
B.
hypothesis and a conclusion
C.
counterexample
D.
hypothesis only
Hint