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Twice at 1 and 5/2

2x2-7x+5 = 0

(2x-5)(x-1) = 0

x = 1 or x = 5/2

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Q: How many times does the graph of 2x2-7x plus 5 cross the x-axis?
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(show on board) 36.Distributive Property-For all numbers a, b, and c, a(b + c) = ab + ac.(show on board) 37. Domain of a function-The set of all input values for the function. The x values. 38. Equation-A mathematical sentence formed by setting two expressions equal to each other. 39. Equilateral triangle-A triangle with three congruent sides. 40. Evaluate-To find the value of an algebraic expression by substituting a number for each variable and performing the operation(s). 41. Exponent-A number that represents how many times a base is used as a factor in a repeated multiplication. (show on board) 42. Experimental Probability-A probability based on repeated trials of testing. What actually happens when you play the games. 43. Expression-a mathematical statement without an equal sign or an inequality symbol that includes at least one variable 44. Factor- A whole number or pair of whole numbers that multiply to be another number. 45.Fraction-A number of the form a/b where b cannot = 0. 46.Function-A set of rules including a domain which contains the inputs and a range which contains the outputs. For each input there is exactly one output. 47.GCF-The greatest whole number that is a factor of two or more nonzero whole numbers. 48.Heptagon-A polygon with 7 sides. 49.Hexagon-A polygon with 6 sides. 50.Histogram-A graph that displays data from a frequency table. 51. Horizontal-a line or a direction that is parallel to the x-axis and goes from left to right (from East to West) 52.Hypotenuse-The side of a right triangle that is opposite the right angle. Always the longest side of a right triangle. 53.Image-The new figure formed by a transformation. After the transformation. 54.Improper Fraction-A fraction whose numerator is greater than or equal to its denominator. 55.Inequality-A mathematical sentence formed by placing one of the symbols <,>,≤, or ≥ between two expressions. 56. Input-The number that is put into the function. Set of all of these forms the domain. 57.Integers-The set of numbers…-4, -3, -2, -1, 0, 1, 2, 3, 4. Also referred to as the whole numbers and their opposites. 58.Interquartile Range-The difference of the upper and lower quartiles of a data set. 59. Intersection-the set of points or a point that two geometric figures have in common. 60. Inverse operations-Operations that "undo" each other. 61. Irrational Number-A real number that cannot be written as a quotient of two integers. The decimal form of this set of numbers neither terminates nor repeats. 62. Isosceles Triangle-A triangle with at least two congruent sides. 63. LCD-The least common multiple of the denominators of two or more fractions. 64. 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Vertical-A line or direction that is parallel to the y-axis and goes from top to bottom/up and down (north to south) 158. Volume-The amount of space a solid contains in terms of cubic units. Amount of space inside the object. 159. Whole Numbers-The set of numbers 0,1,2,3….. Also called the Natural numbers including 0. 160. X-Axis-The horizontal axis in a coordinate plane. 161. X-Coordinate-The first number in an ordered pair representing a point in a coordinate plane. 162. X-Intercept-The x-coordinate of a point where the graph crosses the xaxis when y=0. 163. Y-Axis-The vertical axis in a coordinate plane.