#### Question 1

For the graph shown:

 a b the coordinates of the vertex are: (0, 7) (2, 3) (3, 2) the equation of the axis of symmetry is: x = 2 x = 3 y = 2

#### Question 2

The equation of the graph pictured could be:

 $$y = 3x^2$$ $$y = 3^x$$ $$y = 3x$$

#### Question 3

The equation of the circle shown is:

 $$x^2 + y^2 = 4$$ $$x^2 – y^2 = 4$$ $$x^2 + y^2 = 2$$