Math Placement Test Vocab Exam Questions and Answers(GRADED A+)

Rational number - ANSWER -Any number that can be written as a fraction. Terminates or repeats. An example is 1/3. Whole numbers - ANSWER -whole numbers start at 0 and only go up. Negative numbers are not in the set of whole numbers. Natural numbers - ANSWER -Start at 1 and go up. No 0s, and no negatives. Integers - ANSWER -All whole numbers and their negatives Equation - ANSWER -There is an equal sign Expression - ANSWER -No equal sign Function - ANSWER -Passes the vertical line test. Every x value has exactly 1 y value. A sideways parabola (y=squarerootofx) is not Ratio - ANSWER -A fraction that compares two numbers Properties of addition and subtractiln - ANSWER -Know commutative, associative, inverse (5 + -5 = 0), multiplicative inverse (5 • 1/5 = 1) aka reciprocal, etc. Proportion - ANSWER -Two ratios set equal to each other. An equation with fractions Cartesion coordinate system - ANSWER -Coordinate plane, four quadrants. (On a graph, make a C. Top right, top left, bottom left, bottom right.) X axis - ANSWER -Horizontal. First in an ordered pair Y acis - ANSWER -Vertical. Second in an ordered pair Quadrants - ANSWER -1st - (+,+) 2nd - (-,+) 3rd - (-,-) 4th - (+,-) Slope intercept form - ANSWER -Y = mx + b