Test your basic knowledge |

Praxis I Math

Subjects : praxis, math
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. In a quadratic formula if the a value of the parabola is less than 0 the parabola opens ___________






2. 1/a^n can also be written as a to the ______






3. What is the formula for a square if you only know the length of the diaganol






4. An angle whose measure is 90 degrees






5. An angle whose measure is 180 degrees






6. Positions = number of position can be calculated by finding the ______ of the total number of items






7. What is the linear equation where a - b and c are constants b cannot = 0






8. The greatest common factor is the largest __________that is common to all member of the set






9. To calculate a permutation (order does not matter) what is the formula






10. The associative property of multiplicaiton for every real number a - for every realy number b for every real number c (ab)c = ______






11. Two angles with a common vertex and with sides that are 2 pairs of opposite rays






12. In a quadratic equation in 2 unknowns has the general formula ax^2 + bxy + cy^2+dx +ey+ f = 0 the graph is called an __________ (b^2-4ac greater then 0)






13. What is the closure property of addition - for every real number a - for every real number b ______________ is a real number






14. A __________of a circle is a line segment drawn from the center of the circle to any point on the circle






15. The surface area of a cube is what formula






16. In complex numbers the square root of -1 = ______






17. When proving 2 polygons are similar - what is the formula you use (hint: n= the number of sides)






18. Is a polygon that is both equilateral and equangular






19. If all points lie in the same plane they are __________






20. The y value of the vertex of parabola is the equation






21. What is the formula for a combination (where order matters)






22. A closed three sided figure is called a ____________






23. What is the volume of a cone






24. How do you calculate the area of a parallelogram - what is the formula






25. What are the 2 formulas to calculate the circumference of a circle






26. The x value of the vertex of a parabola is the equation






27. An angle whose measure is larger than 0 degrees but smaller than 90 degrees






28. A ___________is a figure with the same number of sides as angles






29. x= - b (+ or -) square root of (b^2-4ac) divided by 2a - is called the _____________ and can be used to find the roots of a problem






30. A parallelogram with right angles and equal diagonals






31. Is a polygon whose angles are equal in measurement






32. When solving a system of equation involving quadratics and one is linear and the other is quadratic - solve the _______ first - then substitue the found value into the quadratic and solve for the other unknown






33. When you find the inverse of a function switch the x value with a ____ - solve for y






34. In a quadratic equation in 2 unknowns has the general formula ax^2 + bxy + cy^2+dx +ey+ f = 0 the graph is called an __________or a __________ or __________(b=0 and a=c)






35. The volume of a cube is






36. Two angles whose sum totals 90 degrees






37. The _______ tells how many times the root needs to be multiplied by itself






38. What is a quadrilateral with 2 and only 2 sides parallel






39. To solve a system of equations you must first make the two equations ___________to each other - then use the discrimant to find if the system has any real roots






40. A __________is any process that assigns a ___________value of y to each number of x






41. The union of two rays having the same end point






42. The side of a right triangle opposite the right angle






43. When you see f of g replace the x in f(x) with the ___________






44. A triangle with a 90 degrees angle






45. To find the x intersept we need to make __________= 0






46. If you want to convert a fraction to a percentage you need to make it =






47. i^2 = _____________






48. A set of points in the seame plane equidistant from a fixed point - called its center






49. How do you calculate the area of a trapezoid (hint h= altitude - perpendicular segment)






50. What is the square of ((x1-x2) + (y1- y2)) =