1.
Determine which equation represents a function.
A.
B.
x
= 4
C.
x
=
y
2
- 1
D.
y
= -2
x
+ 1
Hint
2.
What is the
x
-intercept of the graph below?
A.
2
B.
3
C.
-2
D.
-3
Hint
3.
Which equation is graphed below?
A.
x
+ 3
y
= 6
B.
3
x
-
y
= -6
C.
x
- 3
y
= -6
D.
3
x
+
y
= 6
Hint
4.
The temperature in degrees Fahrenheit can be expressed by the function
F
(
c
) = 1.8
c
+ 32 where
c
is the temperature in degrees Celsius. Find the temperature in degrees Fahrenheit (to the nearest degree) if it is 18°
C
outside.
A.
20
B.
64
C.
42
D.
212
Hint
5.
Given
find ?
A.
9
B.
–9
C.
–12
D.
10
Hint