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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 equation with 2 unknown which has the formula ax^2 + bxy + cy^2 + dx + ey + f the graph is _____________ or a pair of __________ if ( b^2-4ac= 0) which may be coincident or it does not exist






2. The measure of a minor arc is the measure of the __________that intercepts the arc






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






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






5. A line that joins the midpoint of two sides of a triangle is called the__________






6. Log base b to the b^x =






7. 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






8. 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 __________ (if a - b and c are not zero)






9. Is a polygon whose sides are equal in measure






10. The possible solution of a quadratic equatin ax^2 + bx + c= 0 are called the_______






11. To calculate the diagnol of a square you multipy any ______by the _______________of 2






12. 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






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






14. When you have a linear equation such as ax + by = c you may use ___________ or _____________ to solve the problem - (you may first have to multiply through one of the equation to make either the x or y value equal)






15. The __________property of additon says that fro every real number a - ther is a real number such that a + - a = - a+ a = 0






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






17. The graph of y= ax^2 + bx + c is a curve know as a ____________






18. What is the formula to calculate the area of a rectangle






19. A _________ number is a number that can be written in the form of a + bi






20. The _______says for every reals number a - for every real number b and for every real number c - a(b+c) = ab + ac






21. What is the surface area of a right circular cylinder with a radius of r and a height of h






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






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






24. The absolue value of the difference of the coordinates of any two points on the real number line






25. i^2 = _____________






26. _____________ of angles is an equivalance relation - it is reflexive - symmetric and transitive






27. Two lines are said to be ______________ if they intersect and form right angles






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






29. If a triangle has two congruent sides then it is an _________triangle






30. The set of all points on a half line and the dividing point itself






31. The segment from the center of the polygon perpendicular to as side of the polygon






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






33. 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






34. In the law of proportion if a/b = c/d then (a - b)/b =






35. In a logarithm the answer following the = sign is the __________






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






37. What is the formula for the area of a rhomus - (hint d= diagonal)






38. In the law of proportion if a/b = c/d then ad =






39. When solving a system of equation with 2 quadratic function - first __________ one equation from the other equation to find isolate one variable - solve for that variable - then ______ and solve for the other variable






40. Once you find the roots of a radical equation you must check them to see if any are __________roots (which means they are not equal when plugged back into the original formula) these roots must be ___________






41. When calculating the number of sides in a polygon make 360 degrees/ n = ______________






42. The surface area of a cube is what formula






43. What is the area of a pyramid or cone (hint B= area of Base)






44. Two distinct straight lines can intersect at most at only one point






45. An angle whose measure is greater than 180 degrees and less than 360 degrees






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






47. A point has no ________or thickness






48. In the pythagorean theorm a^2 + b^2 = c^2 - c is called the ______






49. A line that intersects a circle in tow point is called the _______






50. What is the formula for the area of a triangle