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What does m equal
m is the gradient
What does o equal
the origin
Hoe do you calculate the gradient
y2-y1/x2-x1
What are the two ways of writing a straight line graph
y=mx+c
0=ax+by+c
How do i find a straight line graphs equation with only one coordinate and the gradient
y-y1=m(x-x1)
What do parallels lines share
A gradient
What is the gradient of the line parallel to y=x
m=1/x
If two lines are perpendicular what does multiplying their gradients give you?
-1
How do you find the distance between two coordinates
Pythagoras aka √((x2-x1)² +(y2-y1)²)
How do you find the point at which two graphs would intersect
Simultaneous equations
When are two quantities directly proportional to eachother
When they increase at the same rate
Where will a directly proportional straight line graph cross
origin
What is a mathmatical model
It is an attempt to turn a real life problem into math’s, you do however have to make assumptions
