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DSAT Formulas
| Question | Answer |
|---|---|
| how to find SLOPE (graph) | m= y2-y1/x2-x1 |
| sin | sin= opp./hyp. |
| cos | cos= adj./hyp. |
| tan | tan= opp./adj. |
| linear function equation | f(x)= mx+b |
| independent variable equation | D= b² -4ac |
| (x+y)(x-y) = x²-y² | (x+y)² = x² + 2xy +y² (x-y)² = x² - 2xy + y² |
| quadratic equation FORMULA | x= -b±√b²-4ac/2a |
| quadratic equation | ax² + bx + c |
| what happens when 2 equations have the same slope but DIFFERENT Y-INTERCEPTS? | no solution |
| how to find SLOPE (q.e.) | -a/b |
| how to find Y-INTERCEPT | c/b |
| how to find X-IINTERCEPT | c/a |
| how to find ARC LENGTH | s= rθ |
| discriminant/equal roots equation | b²-4ac positive= 2 real roots zero= 1 real root negative = no roots |
Created by:
maraschrantz
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