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Slope
(y2-y1)/(x2-x1)
Vertex form of a Quadratic Function
f(x) = a(x – h)^2+ k
Vertex: x-intercept (h)
y-intercept (k)
Circle theorem
Length of arc
S=rtheta
θ Is measured in radians in this equation
A circle with center (h,k)
(x – h)2+ (y – k)2 = r2
If a line is perpendicular to another linear line
The slope is the negtive reciprocal
Quadratic formula
