| Term | Definition |
|
rate |
rate is comparing two quantities of different kinds |
|
direct proportion |
where two quantities change by the same factor |
|
inverse proportion |
x + y are in proportion if when x increases, y decreases by the same factor |
|
k |
algebraic term for constant |
|
m |
algebraic term fo gradient |
|
(x1/x2) x (y1/y2) |
equation to find whether numbers and inversely proportional. |
|
square root of (x2-x1)^ + (y2-y)^ |
equation to find distance between any two points on the plane |
|
x = (x1 + x2)/2 , y = (y1 + y2)/2 |
midpoint formula |
|
(y2 - y1) / (x2 - x1) |
gradient formula |
|
y = mx + c |
y intercept equation |
|
ay + bx + c = 0 |
standard form equation |
|
y2 - y1 = m (x2 - x1) |
alternative one point gradient equation |