Graphical methods

As c increases, y remains the same.

There is no relationship between the variables. Y=b or y is constant

As x increases, y increases at a constant rate

Y is directly proportional to x

Y= Mx+b

As x increases, y decreases at a decreasing rate.

Y is inversely proportional to x

Y=m(1/x)+b

As x increases, y increase at an increasing rate.

Y is proportional to the square of x

Y= mx²+b

As x increases, y increasing at a decreasing rate.

Y²= Mx+b

Vector

A measurement with direction and magnitude

Scalar

A measurement with only magnitude

Position

A point in space, a location

Symbol: x, y

Unit: m/km/cm

Starting position

A initial location of an object

Xo Yo

m/km/cm

Distance

A path dependent measurement of how far an object travels

d

m/km/cm

Displacement

A measurement of change in motion of an object in a straight line

d with hat

m, NW km, SW

Speed

The distance an object travels in a given time

v

m/s

Velocity

The displacement an object travels in a given time

v with hat

m/s, N

instantaneous velocity

The velocity of an object at any given time m/s

average velocity

The velocity for a time period m/s

Time

How long the motion takes

t (seconds)