Home->ACT Math

Which of the following expresses the equation 4x - 2y = 12 in slope-intercept form for the standard (x, y) coordinate plane?

(A)

(B)

(C) y = 2x - 6

(D) y = -2x + 6

(E) y = -2x - 6

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)?

(F) (G) (H) (J) (K)

Correct Answer: F

Which of the following gives the equation for the circle in the standard (x,y) coordinate plane with a center at (4,-8) and a circumference of 10π square coordinate units?

(A) (x - 4)² + (y + 8)² = 25 (B) (x - 4)² + (y + 8)² = 100 (C) (x + 8)² + (y - 4)² = 25 (D) (x + 8)² - (y - 4)² = 100 (E) (x + 8)² + (y - 4)² = 100

Correct Answer: A

A recipe calls for cooking a turkey 1 hour for every 3 pounds it weighs. How long should a 19-pound turkey cook?

（A）6 hours and 15 minutes （B） 6 hours and 20 minutes （C） 6 hours and 30 minutes （D） 6 hours and 33 minutes （E） 6 hours and 40 minutes

Correct Answer: B