A moving company charges $90 to rent a truck for 4 hours or $150 to rent a truck for 8 hours. What equation can be used to model the cost of renting the truck per hour?
y = (a) (b) (c)
เลือกจากคำด้านล่าง
15x
60x
+
-
30
4
15
60
2.
A balloon is released from a ride at a height of 12 feet. The balloon rises at a rate of 3 feet per second. What is the height of the balloon after 10 seconds?
a)
42 feet
b)
18 feet
c)
30 feet
d)
12 feet
3.
The equation y = (a) (b) 12 models the line because the line crosses the y-axis at (c) and y decreases by (d) when x increases by 1.
เลือกจากคำด้านล่าง
-2x
12
2
+
-
-2
2x
-12
12x
-12x
4.
Which point predicts the hours a student who plays 9 hours of video games would spend playing outside?
A
B
C
D
5.
Draw a trend line on the graph.
6.
Write an equation that represents the trend line for the data. y = (a) + (b)
เลือกจากคำด้านล่าง
-1.5x
92.3
1.5x
4x
-4x
342
7.
Which triangle is a direct variation of the triangles shown?
a)
base = 4
hypotenuse = 7
b)
base = 12
hypotenuse = 18
c)
base = 18
hypotenuse = 30
d)
base = 21
hypotenuse = 32
8.
Look at this set of ordered pairs: (-2, 4), (-1, 1), (0, 0), (1, 1), (1, 2)
Which of the ordered pairs prevent this set of ordered pairs from being a function? Select TWO correct answers.
a)
(-2, 4)
b)
(-1, 1)
c)
(0, 0)
d)
(1, 1)
e)
(1, 2)
9.
The table represents a function. The missing value can be -4 because a function (a) have more than one input that has the same output.
เลือกจากคำด้านล่าง
can
cannot
10.
Which set of ordered pairs is NOT a function?
a)
(-2, 4), (5, 5), (8, 6), (10, -2)
b)
(-7, -1), (1, 9), (8, 12), (-7, 14)
c)
(20, 12.2), (25, 15), (34, 2.1), (40, 24)
d)
(100, 5.6), (120, 3.7), (140, 2.9), (160, 0.4)
11.
Which statement about the missing y-value is true?
a)
If the missing y-value is 10, the mapping is a function.
b)
Any value of y can make the mapping a function.
c)
Any value of y except 2, 4, 6, or 8 will make the mapping a function.
d)
There is no value of y that can make the mapping a function.
12.
Organize these options into the right categories
จัดหมวดหมู่ดังต่อไปนี้
Function
Not a function
แป้นคำตอบ
MUE Ch 3 Functions Part 2
คำถามทั้งหมด: 12
1.
15x, +, 30
2.
a)
42 feet
3.
-2x, +, 12, 2
4.
5.
ไม่มี
6.
-1.5x, 92.3
7.
c)
base = 18
hypotenuse = 30
8.
d)
(1, 1)
, e)
(1, 2)
9.
can
10.
b)
(-7, -1), (1, 9), (8, 12), (-7, 14)
11.
d)
There is no value of y that can make the mapping a function.