Quadratic Formula
-b±[√b²-4ac]/2a
Distance Formula
d = √[( x₂ - x₁)² + (y₂ - y₁)²]
midpoint formula
(x₁+x₂)/2, (y₁+y₂)/2
Domain
Read left to right
Range
read bottom to top
Closed Circle
Hard Bracket
Open Circle
Soft parenthesi...
Distance Formula - answer d = √[( x₂ - x₁)² + (y₂ -
y₁)²]
midpoint formula - answer (x₁+x₂)/2, (y₁+y₂)/2
Domain - answer Read left to right
Range - answer read bottom to top
Closed Circle - answer Hard Bracket
Open Circle - answer Soft parenthesis
Function on a graph - answer Can only continue if
there is a hard circle where two lines meet on x
axis
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