The graph of y2 = x is shown in the standard (x,y) coordinate plane below for values of x such that 0 ≤ x ≤ 4. The x-coordinates of points D and E are both 4. What is the area of ΔDEO, in square coordinate units?
(A)
(B) 4
(C) 8
(D) 12
(E) 16
The Correct Answer
If 
, with a > 0, b> 0, and c> 0, what is the value of ain terms of band c?
(A) 
(B) 
(C) 
(D) 
(E) 
Correct Answer: B
In the figure below, S and T are points on RU. What is the ratio of the area of square STVX to the area of parallelogram RUVY?
（A）3:8 （B） 1:11 （C） 3:11 （D） 9:11 （E） 3:24
Correct Answer: C
For the imaginary number i, which of the following is a possible value of in if n is an integer less than 5?
(A) 0 (B) -1 (C) -2 (D) -3 (E) -4
Correct Answer: B
More ACT Math Exam Questions
- 1If x = 3, y = 5, and w = 4, what is the value of
? - 2
If the first day of the year is a Monday, what is the 260th day?
- 3In the figure shown below,
and 
intersect at O and 
is perpendicular to 
. What is the value of 3p + 4s - 2t?
- 4In the figure, points A, B, C, and D are collinear. Angles A, E, F, and D are as marked. What is the measure of angle G?
- 5While doing research on the climates of South American countries,
Andrea notices that all of the temperatures are given in degrees
Celsius. Because she is not as familiar with the Celsius temperature
scale, it is difficult for her to know whether a location with an
average temperature of 25°C has a warm climate. Fahrenheit, F, and Celsius, C, are related by the formula
. What is the temperature in degrees Fahrenheit of the location with an average temperature of 25°C?