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






2. When calculating the probability of independent events you need to __________ (words like and &' followed by' )






3. What is the formula the formula for an arc if you know the radius and the n= central angle






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






5. Use ____________= 1/2a X p (where a = apothem and p = the perimeter)






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






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






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






9. What type of trapezoid has its non parallel sides equal






10. A __________________ is a circle passing through all the vertices of a polygon






11. What property of equality ways for each real number a - for each real number b - for each real number c - if a=b and b=c - then a=c






12. For each real number a - for each real number b - if a= b - then b=a






13. A line segment connecting a vertex of a triangle and the midpoint of the opposite side is called a __________ of a triangle






14. 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






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






16. In a function the x value is the ___________variable






17. The value of y where a point intersects the x axis = __________






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






19. A triangle with three acute angles (less than 90 degrees)






20. 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






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






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






23. 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 ___________






24. Two angles whose sum totals 90 degrees






25. 2 angles that have their vertices at the endpoints of the same side of a parallelogram are called ____________________






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






27. 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






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






29. The __________ of a regular polygon is the segment joining an vertex with the center of the polygon






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






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






32. The volume of a cube is






33. What is the closure property of multiplication for every real number a - for every real number b _________ is a real number






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 __________ (b^2-4ac greater then 0)






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






36. A ray _________ divides the angle into 2 angles that have equal measure






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






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






39. Angles that are equal






40. 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)






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






42. The perimeter of a polygon is equal to the ________of sides X the _____________ of sides






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






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






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






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






47. 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






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






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






50. Two angles whose sum totals 180 degrees