Functions/Trig Formulas
Slope: m = y2 – y1
x2 – x1
Midpoint: (x2 + x1 , y2 + y1)
2 2
Point – Slope: y – y1 = m(x – x1)
Slope – intercept: y = mx + b
General form: Ax + By + C = 0 m = -A/B
Average Rate of Change: y = f(x2) – f(x1)
x x2 – x1
Average Velocity: s = f(t2) – f(t1)
t t2 – t1
Squaring Binomials: (a + b)2 = a2 + 2ab + b2
(a - b)2 = a2 - 2ab + b2
Distance: d = (x2 – x1)2 + (y2 – y1)2
Difference Quotient: f(x + h) - f(x) where h = 0
h
