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Math class practice.
|Finding X and Y intercepts.||To find the x-intercept, substitute 0 in for Y. To find the y-intercept, substitute 0 in for X.|
|Slope of a line passing through two points.||M=(Y2-Y1)/(X2-X1)|
|Point-Slope form of an Equation of a line. Passes through points (X1,Y1)||Y-Y1=M(X-X1)|
|How do you find the 0's of 3x^2+x-10?||Set the equation equal to 0. 3x^2+x-10=0 Factor afterwards. (3x-5)(x+2)=0 Set those equal to 0. 3x+5=0 > x=5/3 x+2=0 x=-2|
|When is a function increasing, decreasing, or constant?||Constant when :fx1=fx2 Decreasing when: fx1>fx2 Increasing when: fx1<fx2|
|When is a function even or odd?||Odd when you substitute -x for all x's in the equation and get a negative. Vice versa.|