Co-ordinate geometry Flashcards
1
Q
Axis order
A
X,Y
Lke the alphabet
2
Q
Origin
A
(0,0)
3
Q
Distance formula
A
_______________
√(x₂-x₁)+(y₂-y₁)
4
Q
Midpoint of a line
A
(x₁-x₂) , ( y₁-y₂)
2 2
5
Q
How to find the slope when given 2 points
A
y₂-y₁ ÷ x₂-x₁
6
Q
How to find the slope when given a diagram
A
Rise over run
7
Q
How to find the slope when given the equation of the line in the form ax+by+c=0
A
-x number
y number
8
Q
Equation of the line formula
A
y-y₁ =m(x-x₁)
9
Q
Y=mx+c
What do m and c mean
A
M = slope
C = y intercept
10
Q
Intersecting lines
A
Use simultaeneous equations to find out where they meet
11
Q
Graphing lines
A
Find where the line cuts each axis
12
Q
Parallel lines
A
m₁ = m₂
13
Q
Perpendicular
A
m₁xm₂ = -1
