## Test your basic knowledge |

# Algebra Formulas

**Instructions:**

- Answer 50 questions in 15 minutes.
- If you are not ready to take this test, you can study here.
- Match each statement with the correct term.
- Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

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

**3. Second step to linear combo. Fill in variable for whatever you solved for OR change equation to y= or x=**

**4. Vertical line**

**5. Plug in vertices in objective function**

**6. Horizontal line**

**7. Shaded area**

**8. Substitute AND simplify**

**9. Slope of 1/1 - through 0**

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

**11. Opposite - reciprocal slopes**

**12. No fraction or decimal**

**13. A=a it is what it is**

**14. Correct result - but doesn't work in equation**

**15. Soft - parentheses**

**16. 'Points' from side to side**

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

**18. Same slopes**

**19. [2x+3]=9 - [2x+3]=-9 write it both ways**

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

**21. 'Points' from BOTTOM to TOP**

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

**23. A=b - then ac=bc**

**24. Intersecting points**

**25. Change of order a+b+c=a+c+b**

**26. Hard - brackets**

**27. Solid line**

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

**29. Solve for (3x-4)(x+5)**

**30. x-value because its value is given**

**31. Solve using every equation (use linear combination)**

**32. Relations have all points in common e.g same line**

**33. Set of ordered pairs (input and output)**

**34. y-y{2}=m(x-x{2})**

**35. Ax+By=C (letters are real - not zero)**

**36. 1 -2 -3...maybe 0**

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

**38. Put is simplest form**

**39. f(x -y)=x + y**

**40. No solution**

**41. Change one equation with LCM (i think) and add up - cancelling one variable out**

**42. One or more solutions**

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

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

**45. Change of grouping a+(b+c)=(a+b)+c**

**46. Shading goes down - or left**

**47. Dotted line**

**48. Original status a+0=a - ax1=a**

**49. e.g x**

**50. A=b - then b=a**