1.
Which is the standard form of a linear equation?
A.
4
x
- 9
y
= 1
B.
C.
3
x
2
+
y
= 5
D.
y
= 2
x
- 3
Hint
2.
Find the
y
-intercept of the graph of 2
x
- 5
y
= 10.
A.
0
B.
5
C.
2
D.
-2
Hint
3.
Which equation is graphed below?
A.
3
x
-
y
= -6
B.
x
+ 3
y
= 6
C.
3
x
+
y
= 6
D.
x
- 3
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.
64
B.
20
C.
42
D.
212
Hint
5.
Consider the function
f
(
x
) = -2(
x
+ 8). Is this function a linear function? Why or why not?
A.
No,
f
is not a function.
B.
No, the function cannot be written in the form
f
(
x
) =
mx
+
b
.
C.
Yes, the coefficient of
x
is not zero.
D.
Yes, the function can be written in the form
f
(
x
) =
mx
+
b
.
Hint