A photocopy machine enlarges a small triangle to produce a larger,
similar triangle, as shown below. If the lengths of the sides, in
inches, are as marked on the figure, and the triangles are similarly
oriented, what is the value of x in inches?
(A)7
(B) 9
(C) 9
(D) 9
(E) 11
To make space for new merchandise, a clothing store offered a 15% discount on all current stock.What is the sale price of a jacket that regularly sells for $42?
（A）$6.30 （B） $8.40 （C） $35.70 （D） $37.80 （E） $41.85
Correct Answer: C
If g(x) is a transformation that moves f(x) three units to the right and then reflects it across the x-axis, then g(x) =
(A) f(–x) + 3(B) f(–x) – 3(C) f(x) + 3(D) –f(x+ 3)(E) –f(x– 3)
Correct Answer: E
For all real values of y, 3 - 2(4 - y) = ?
(A) -2y - 9 (B) -2y + 8 (C) -2y - 1 (D) 2y - 5 (E) 2y + 11
Correct Answer: D
More ACT Math Exam Questions
- 1Dave leaves his house and bikes directly east for 3 miles. He then turns and bikes directly south for 4 miles. How many miles is Dave from his house?
- 2
A sphere is inscribed in a cube with a diagonal of 3
ft. In feet, what is the diameter of the sphere?
- 3What is the solution set for the equation |-x| = x?
- 4If
and a, b, and x are integers greater than 1, what must x equal? - 5
A function f(x) is defined as even if and only if f(x) = f(-x) for all real values of x. Which one of the following graphs represents an even function f(x)?