Question: must know equations for sat?
Answer: Slope-Intercept Form of a Line. y=mx+b. ... 
Vertex Form of a Parabola/Quadratic. y=a(x-h)^2+k. ... 
Distance Formula. d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} ... 
Quadratic Formula. ... 
Exponent Rule (Multiplication) ... 
Exponent Rule (Division) ... 
Exponent Rule (Power Raised to a Power) ... 
Binomial Product 1—Difference of Squares.