Polar cis form is the polar form of a complex number: r(cosθ+isinθ) often abbreviated as r cis θ Explanation: A complex number z is...

Graphs can be used in real life in many ways. For example, a line graph in the form of a straight line signifies a linear relationship...

Explanation: Assign any two arbitrary values to x and find out corresponding values of y. For example let x=0, so y=2 and for x=1, y =3...

Let us put a circle of radius 5 on a graph. Now let's work out exactly where all the points are. We make a right-angled triangle: 52+ 02=...

y = how far up x = how far along m = Slope or Gradient (how steep the line is) b = value of y when x=0 How do you find "m" and "b"? b is...