In a complex plane, the vertical axis is the imaginary axis and the horizontal axis is the real axis. Within the complex plane, a complex number a + bi is comparable to the point (a, b) in the standard (x, y) coordinate plane. 
is the modulus of the complex point a + bi. Which of the complex numbers F, G, H, J, and K below has the smallest modulus?
(A)F
(B) G
(C) H
(D) J
(E) K
The following figure shows a cylindrical tank whose diameter is 3 times the length of its height. The tank holds approximately 231.5 cubic meters of fluid. Which of the following answer choices most closely approximates the height of the tank?
(F) 2 meters(G) 3 meters(H) 4 meters(J) 5 meters(K) 6 meters
Correct Answer: G
Which of the following is the graph of the equation 
in the standard (x, y) coordinate plane?
（A）
（B） 
（C） 
（D） 
（E） 
Correct Answer: C
In the following figure, sin θ=
(A) 
(B) 
(C) 
(D) 
(E) 
Correct Answer: E
More ACT Math Exam Questions
- 1On a level field, a telephone pole 24 feet tall casts a shadow 6 feet long, and at the same time of day, another nearby telephone pole casts a shadow 18 feet long. How many feet tall is the second telephone pole?
- 2
In the spring semester of her math class, Katie's test scores were 108, 81, 79, 99, 85, and 82. What was her average test score in the spring semester?
- 3Do most colleges prefer the SAT or ACT?
- 4
The graph of y = f(x) is shown in the standard (x,y) coordinate plane below with points V, W, X, Y, and Z labeled.
The y-intercept of the graph of y = f(x) is located at which of the following points?
- 5
If you drive 60 miles at 90 miles an hour, how many minutes will the trip take you?