Đề thi Olympic Tiếng Anh lớp 11 vòng 13 năm 2013 - 2014

Câu 1

Which equation describes the relationship between the x and y values in the table?

Câu 2

Which graph represents a function of x?

Câu 3

Which graph represents the solution set of the inequality y ≤ (1/5)x?

Câu 4

The boiling temperature of water is 100°C at sea level. For every 1 kilometer increase in altitude, the boiling temperature of water decreases by about 3.5°C. Which equation describes the relationship between the boiling temperature of water in degrees Celsius (b) and the altitude in kilometers (a)?

Câu 5

What is the value of x in the equation above?

Câu 6

What are the solutions to the quadratic equation: x² + 3x = 4?

Câu 7

Simplify: (7x² + 3y) − (3x² + 5y)

Câu 8

Simplify: (x² + 2x)(5x − 3)

Câu 9

Which graph represents the solution of the system of equations above?

Câu 10

The roof of a house rises 4 feet vertically for every 3 feet it runs horizontally. The ceiling inside the house is parallel to the roof. What is the slope of the ceiling?