Math EOY Exam

What is many-to-one mapping?

If every element in the domain (x) maps to a unique element in the range(y), but at least two elements of the domain (x) maps to one particular element in the range(y).

What is one-to-many mapping?

if every element in the range is mapped from a unique element in the domain, but an element of the domain maps to more than one element in the range

What is many-to-many mapping?

if more than one element in the domain maps to the same element in the range, and an element in the domain maps to more than one element in the range.

What is the domain?

All possible x-values the graph covers

What is range?

All possible y-values the graph covers

What do arrows at the end of a line in a graph mean?

the graph continues infinitely in that direction

What do filled in dots at the end of a line in a graph mean?

The graph includes that point and stops.

What do open dots at the end of a line in a graph mean?

The graph does not include that point, it gets close but doesn't reach that value.

What is the formula for the perimeter of a circle?

2πr or πd

What is the formula for arc length?

(angle/360) x 2πr

What is the formula for area of a parallelogram?

base x height

What is the formula for the area of a trapezium?

(a+b/2) x h

What is the formula for area of a circle

πr²

What is the formula for area of a sector?

(angle/360) x πr²

What is the formula for surface area of a hollow cylinder?

What is the formula for surface area of a cylinder with one end (open can)?

2πrh + πr²

What is the formula surface area for a closed cylinder?

2πrh + 2πr²

What is the formula for surface area of a sphere?

4πr²

What is the formula for surface area of a closed cone?

πrs + πr²

What is the formula for surface area of a cone with no end?

πrs

What is the formula for volume of a cuboid?

length x width x height