Unit 3 Booklet

Checkup for quadratic equations
1. Write down the equations of the quadratics corresponding to these parabolas:
(each one is of the form y = kx 2 or y = (x + a) 2 + b )
(a) (b) (c)
y
y
(2,12)
y
(2,4)
(1,1)
(1,3)
(1,Ð2)
x
x
x
(2,Ð 4)
(d) (e) y
(f)
y
y
(3,2)
x
(Ð2,2)
x
x
(Ð1,Ð 4)
2. (i) Write down the coordinates of the turning point for each of the following, stating
whether it is a maximum or a minimum.
(ii) Write down the equation of the axes of symmetry for each one.
(a) (b) (c)
y
y
y
x
x
x
Mathematics Support Materials: Mathematics 3 (Int 2) Ð Student Materials 23