# Math Concepts

The flashcards below were created by user anjil.adhikari on FreezingBlue Flashcards.

1. Area of a Traingle: A=1/2bh
2. Pythagoras Theorem:  3. What are the dimensions in a 30, 60, 90 triangle? 4. What are the dimensions of a 45, 45, 90 traingle? 5. What is the area and circumference of a circle?   6. What is the volume of a 3D cube? Volume: L*W*H
7. What is the volume and area of a cylinder?  8. Picking Numbers IN:
• even/odd problems
• percent problems
• algebraic expressions
9. Eliminate the obvious:
on complex questions.
10. Figures in the SAT are:
always drawn to scale, unless labelled.
11. PEMDAS:
Parenthesis, Exponents, Multiply, Divide, Add and Substract.
12. Special Triangles:
3,4,5 and 6,8,10.
13. Triangle Inequality Theorem:
When you add lenght of any two side of any traingle, result must be greater than the length of third side.
14. Average:
Sum of terms/Number of terms.
15. If you are solving for a percent:
Part/Whole=Percent
16. If you need to solve for a part:
Percent*WHole=Part
17. When square root in a term in a equation:
square both sides to eliminate the square root.
Choose a number.
19. Because absolute value is distance:
its always positive.
20. Domain:
set of values for which the function is defined.
21. Range:
set of outputs or results of the function.
22. Linear function:
equation whose graph is a straight line.
23. Slopes of perpendicular lines:
Negative reciprocals.
24. Slopes of parellel lines:
Equal.
ax(squared)+bx+c
26. Transformation:
Alteration of any function.
27. f(x)+n:
shifts grap of f(x) n units up.
28. f(x)-n:
shifts grap of f(x) n units down.
29. f(x+n):
shifts grap of f(x) n units left.
30. f(x-n):
shifts grap of f(x) n units right.
31. Equation of a straight line:
y=mx+b
32. Midpoint formula: 33. When a line is tangent to a circle:
it is perpendicular to the radius that it intersects.
34. Positive Slopes:
tilt upward to the right.
35. Negative Slopes:
tilt downward to the right.
36. Horizontal Lines:
have a slope of zero.
37. Vertical Lines:
have an undefined slope.
38. Parallel Lines:
have equal slopes.
39. Perpendicular Lines:
have negative reciprocal slopes.
40. Union of sets:
(U) symbol. set of elements that are in either or both of the different sets you start with.
41. Intersection of Sets:
(n) symbol. set of elements common to the sets you start with.
42. Direct variation:
y=kx, where k is nonzero constant.
43. Inverse Variation:
xy=k, where x and y are variables and k is constant.
44. Probability:
desired outcomes/possible outcomes.
45. Distance Formula: Author: anjil.adhikari ID: 28902 Card Set: Math Concepts Updated: 2010-08-04 04:23:32 Tags: math SAT remember Folders: Description: Basic and Advanced Math Concepts Show Answers: