Curves
If you know the equation, you can plot a curve point by point - but usually it's acceptable to sketch the shape from
memory. Here are some common curves in the form of y = x
n:
n = 1, y = x
n = 2, y = x2
n = 3, y = x3
n = 4, y = x4
You also need to know curves in the form of y =
1 ⁄
xn:
n = 1, y = 1 ⁄ x
n = 2, y = 1 ⁄ x2
Exam Questions