Math Test Pre-Grade 2: step up

Practice questions

1. For the function y = 3x² with x ≥ 0, what is the range of y when x changes from 0 to 4?

   • 0≦y≦16
   • 0≦y≦48
   • 0≦y≦12
   • 12≦y≦48

2. 2 triangles are similar with a similarity ratio of 3:4. What is the ratio of their corresponding sides?

   • 9:16
   • 3:4
   • 1:2
   • 6:8

3. What are the coordinates of the vertex of y = x² - 4x + 3?

   • (2, 1)
   • (-2, -1)
   • (2, -1)
   • (-2, 1)

4. What is the value of sin45°?

   • 1/2
   • √3/2
   • 1
   • √2/2

5. Use the quadratic formula to solve 2x² - 3x - 2 = 0.

   • x=-2, -1/2
   • x=2, 1/2
   • x=-2, 1/2
   • x=2, -1/2