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### 11 Cards in this Set

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 Law of Cosines C SQUARED EQUALS A SQUARED TIMES B SQUARED MINUS TWO A B COSINE C Area of a Triangle 1/2 A TIMES B TIMES SINE THETA If the equation of a line is given as Y=MX+B the slope is___ and the y-Intercept is___ M and B If the equation of a line is given as Ax+By+C the slope is__ and the Y intercept is__ -A/B and C/B The slopes of parallel lines are__ and the slopes of perpendicular lines are__ The Same and Negative Inverse Equation for a Circle (x-h)2 + (y-k)2 = r2 where R is the radius of the circle and (h,k) is the center point Equation for a Parabola Ax2 + Bx + C = Y (if A is positive then the parabola opens up for X squared and right for Y squared) X=AY2 + BY + C (if A is negative then the parabola opens down for x squared and left for Y squared) Equation for a hyperbola X2/A2-Y2/B2=1 or Y2/A2-X2/B2=1 There is an X2 and a Y2 term If it is X2-Y2 then curves open right and left, if it is Y2-X2 the curves open up and down Equation for an Ellipse X2/A2+Y2/B2=1 A does not equal B There is an X2 and a Y2 Both have positive coefficients The horizontal axis is 2A The vertical axis is 2B If you have f(absolute value of X) The left side disappears if you have the absolute value of f(x) then the whole graph is positive