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SAT Math Vocab
SAT Math Vocab (R. Rushing)
| Term | Definition |
|---|---|
| Mean | sum of terms/number of terms (Average) |
| Average Speed | total distance/total time |
| Mode | value in list that appears the most |
| Median | middle value in the list (that must be sorted) |
| Probability | number of desired outcomes/number of total outcomes |
| x^a * x^b | = x^a+b |
| (x^a)^b | =x^a*b |
| x^0 | =1 |
| x^a/x^b | =x^a-b |
| (xy)^a | =x^a * x^b |
| sqrt.(xy) | = sqrt.(x) * sqrt.(y) |
| 1/x^b | =x^-b |
| (-1)^n | ={+1, if n is even; {-1, if n is odd. |
| Distance from A to B | sqrt.((x1 - x2)^2 +(y1 - y2)^2 |
| Mid-point of the segment AB | (x1+x2/2 , y1+y2/2) |
| Slope of line | rise/run |
| Area of a circle | =pi*r^2 |
| Circumference | 2*pi*r |
| Length of arc | =(n degrees / 360 degrees) * 2 pi r |
| Area of sector | =(n degrees/ 360 degrees) * pi r ^2 |
| Ratio of isosceles right triangle sides (45-45-90) | 1:1: sqrt(2 |
| Ratio of 30-60-90 triangle | 1:sqrt(3:2 |
| Equation for a circle | (x-h)^2+(y-k)^2=r^2 |
| Equation for an ellipse | (x-h)^2 +(y-k)^2 |
| Cosecant | 1/sine |
| Secant | 1/cosine |
| Cotangent | 1/tangent |
| Percent increase or decrease | =(change in amount/ original amount)*100 |
| Domain | All possible values that can be as input into the function so that the function returns a real value |
| Range | All possible values that can be generated by the function |
Created by:
ravenrushing
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