Formulas for College Algebra 1314 (Richland College)
Feel free to add more terms if I missed any (to edit, the password is 1234)!
For the quadratic formula, here: https://www.youtube.com/watch?v=2lbABbfU6Zc
It'll be stuck with you forever now. Mwahaha :)
Tips for absolute value inequalities: Remember, great OR less AND. The greater than inequalities are always split up (OR) and the less than inequalities are always together (AND).
When dividing an inequality by a negative number, ALWAYS flip the inequality sign.
Terms in this set (...)
Slope Intercept Formula
Point Slope Formula
General Form (for lines)
Standard Form (circles)
((x₁+x₂)/2 , (y₁+y₂)/2)
Cubic Function Formula
(a b)(a² ab b²) (Use Same Opposite AlwaysDifferent or SOAP for the + or −)
(a²-b²) (Difference of squares)
Sum Formula (Sequences)
Arithmetic Sequence Formula
Arithmetic Sequence Sum Formula
Geometric Sequence Formula
an=ra(n-₁) (The n won't go down, but it's r times a *subscript* (n-1))