1.
Which is the standard form of a linear equation?
A.
4
x
- 9
y
= 1
B.
y
= 2
x
- 3
C.
D.
3
x
2
+
y
= 5
Hint
2.
Which function is not linear?
A.
f
(
x
) = 2
x
3
B.
f
(
x
) = 8
C.
D.
f
(
x
) = 14
x
+ 7
Hint
3.
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.
212
B.
20
C.
64
D.
42
Hint
4.
When the equation
is written in standard form, what is the value of
B
?
A.
B.
-25
C.
25
D.
Hint
5.
Consider the function
f
(
x
) = -2(
x
+ 8). Is this function a linear function? Why or why not?
A.
Yes, the coefficient of
x
is not zero.
B.
No,
f
is not a function.
C.
Yes, the function can be written in the form
f
(
x
) =
mx
+
b
.
D.
No, the function cannot be written in the form
f
(
x
) =
mx
+
b
.
Hint