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Algebra Formulas

Subjects : math, algebra
  • Answer 50 questions in 15 minutes.
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This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. If IxI>5 then x>5 or x<-5

2. mx+b=y

3. Horizontal line

4. Set of ordered pairs (input and output)

5. Function whose graph is a line

6. Solve for (3x-4)(x+5)

7. Dotted line

8. Same slopes

9. A=b - b=c - then a=c

10. Whats worth

11. Set of all FIRST coordinates of the ordered pairs e.g. x (x -y)(input value - abscissa)

12. Put is simplest form

13. A relation in which each element of the domain is paired with one element in the range (no repeated x - however y can repeat)

14. A=b - then ac=bc

15. # set (2 -3) in x+1=y - 2+1=3

16. x-value because its value is given

17. Rectangular array of #s written w/brackets (classified by # of numbers in row and column e.g. 3x3)

18. Hard - brackets

19. A=a it is what it is

20. 1 -2 -3...maybe 0

21. Change of grouping a+(b+c)=(a+b)+c

22. Substitute AND simplify

23. One or more solutions

24. A=b - then b=a

25. Set might require positive integers - natural #s - positive reals - etc.

26. e.g x

27. f(x -y)=x + y

28. Relations do not have all points in common e.g diff. lines that may intersect

29. Correct result - but doesn't work in equation

30. Opposite - reciprocal slopes

31. Relations have all points in common e.g same line

32. Original status a+0=a - ax1=a

33. [2x+3]=9 - [2x+3]=-9 write it both ways

34. Function in mx+b=y form whose graph is a line

35. Undoes operation a+(-a)=0

36. Vertical line

37. 2 or more inequalities combined conjuction (both are true) -9<-4x-5<3

38. Intersecting points

39. 'Points' from side to side

40. Shading goes up - or right

41. Plug in vertices in objective function

42. Soft - parentheses

43. No fraction or decimal

44. y-value - because its value depends on the x-value

45. Solid line

46. Change of order a+b+c=a+c+b

47. Slope of 1/1 - through 0

48. 'Points' from BOTTOM to TOP

49. Set of all SECOND coordinates of the ordered pairs e.g. y (x -y)(output value - ordinate)

50. No solution