Vocabulary Review for the Exit Level Math TAKS
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Parent Function | The most basic graph (no shifts, stretches, etc.).
*Must go through the origin*
*Must be positive*
ALWAYS LINEAR or QUADRATIC
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| Quadratic Parent Function | y = x^2
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| Linear Parent Function | y = x
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| Domain | The X-VALUES for a specific function
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| Range | The Y-VALUES for a specific function
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| Absolute Value Parent Function | y = |x|
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| Equation of a line | y = mx + b
m = slope
b = y - intercept
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| X - intercept | Point where the line crosses the x-axis
when y = 0
(x, 0)
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| Y - intercept | Point where the line crosses the y-axis
when x = 0
(0, y)
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| Undefined slope | UP & DOWN IS UNDEFINED
X = a #
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| Zero Slope | AcrOss
Y = a #
(it can be graphed in the calc)
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| Regular ________ (the name of a shape) | Tells you that all sides of the shape are congruent
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| Solution to a system of equations | The point where the two graphs intersect
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| Solving equations | The value or values that make the equation or inequality true
(plug in the values and see which one works)
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| Solutions of a quadratic equation | SOLUTIONS, ROOTS ZEROS,
X-INTERCEPTS
(where the graph
crosses the x-axis)
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| perimeter | The distance around the outside of a figure
(in a circle, it is called the circumference)
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| Equilateral triangle | All sides are equal, each angle is 60 degrees
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| Isosceles Triangle | Two sides are the same (also means that two angles are the same)
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| Supplementary Angles | The sum of the angles is 180 degrees
(in alphabetical order
C = 90, S = 180)
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| Complementary Angles | The sum of the angles is 90o
(in alphabetical order
C = 90, S = 180)
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| Sum of the angles of a triangle | 180
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| Less than | Made with the LEFT hand,
Means shade BELOW
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| reflection | MIRROR
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| translation | SHIFT/SLIDE
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| Greater than | Made with the RIGHT hand,
Means shade ABOVE
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| Parallel lines | Have the same slope
Never touch
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| Perpendicular lines | Meet at a 90 degree angle
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| Line of symmetry | A line that can be drawn through a figure that causes both sides to look identical
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| Scalene triangle | A triangle that has no congruent sides
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| function | The x’s don’t repeat!!!
Passes the vertical line test
(if you draw a vertical line anywhere on the graph it only touches the graph once)
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| Independent Variable (independent quantity) | Y
Variable who’s value DEPENDS on another variable
(must be an unknown)
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| Dependent Variable (dependent quantity) | X
Variable who’s value can be chosen
If given an equation, it is the variable IN the equation
(must be an unknown)
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| Composite Figure | A figure composed of different shapes
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| Similar figures | has proportional sides
(set up a proportion and cross multiply)
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| Total Surface Area | The area of all of the surfaces of a three dimensional figure
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| Lateral Surface Area | The area of the surfaces of a three dimensional figure NOT including the base(s)
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| Mean | The average of a set of data
(add all then divide by how many there are)
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| Median | In a set of data that is written in numerical order, the one in the MIDDLE
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| Mode | In a set of data, the one that occurs the MOST
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| Range | In a set of data, the difference between the highest and lowest
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| Multiple probabilities | To find the probability of MULTIPLE (more than one) things happening MULTIPLY
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| Rotation | To twist or turn a figure
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| Theoretical Probability | What you think should happen before you find the probability of a set of events
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| Volume | The space inside a 3 dimensional figure
How much a figure can hold
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| Experimental Probability | What actually happened when you found the probability of a set of events
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| Dilation | Make bigger or smaller (multiply by a scale factor)
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| Sales Tax | A percentage. It is added to the original price.
Ex. Shirt cost 14.50 and there is 8.25% tax
14.50 + 14.50*.0825 = 15.70
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| System of Equations | More than one equation
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| Commission | A percent of a person’s sales. It is ADDED to their hourly pay.
Ex. Sally makes $6/hour and works 20 hours and commission is 5%. How much will she make if she sells $1000.
6*20 + .05*1000 = 170
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