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- #1
- Algebraic expression
- An algebraic expression includes terms consisting
- of numbers and variables, combined with arithmetic
- operators and parentheses.
- #2
- Simplify
- A simplified expression is one reduced to lowest terms.
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- #3
- Evaluate
- You evaluate an expression by substituting a numeric
- value for the variable x.
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- #4
- Numeric expression
- A numeric expression consists of numbers, combined
- with arithmetic operators and parentheses.
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- #5
- Scientific notation
- A number is in scientific notation when it is expressed as
- a product of a number between 1 and 10 and a power of 10.
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- #8
- Greatest Common Factor (GCF)
- The Greatest Common Factor of two numbers is the largest
- whole number which divides both of the numbers.
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- #9
- Least Common Multiple (LCM)
- The Least Common Multiple of two numbers is the smallest
- whole number divisible by each of the numbers.
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- #12
- Point
- You describe a point in the X-Y plane by two coordinates,
- x and y, where x is the distance from the point to the
- X-axis and y is the distance from the point to the Y-axis.
- #13
- Slope
- The slope of a straight line is the change in the
- y-direction divided by the change in the x-direction.
- The slope is not defined for vertical lines.
- #14
- x-intercept
- The x-intercept of a straight line is the x-coordinate
- of the point where the line crosses the x-axis.
- It is not defined for horizontal lines.
- #15
- y-intercept
- The y-intercept of a straight line is the y-coordinate
- of the point where the line crosses the y-axis.
- It is not defined for vertical lines.
- #16
- Linear equations
- A linear equation in two unknowns is one of the form
- a*x + b*y + c = 0, where x and y are variables.
- Its equation is a straight line.
- #17
- Linear equations
- An equation of the form a1*x1 + a2*x2+...+ an*xn = a,
- where a1,a2,..,an and a are real numbers and x1,x2,..,xn
- are variables, is a linear equation in n variables.
- #20
- Triangle
- A triangle is a three-sided figure.
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- #21
- Square
- A square is a four-sided figure with four equal
- sides and four equal angles.
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- #22
- Rectangle
- A rectangle is a four-sided figure with four right
- angles and its opposite sides parallel.
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- #23
- Parallelogram
- A parallelogram is a four-sided figure with both pairs
- of opposide sides equal and parallel.
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- #24
- Trapezoid
- A trapezoid is a four-sided figure with one pair
- of opposite sides parallel.
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- #30
- Square root
- The square root of a number is the number which
- is multiplied by itself to give the original number.
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- #31
- Distance
- The distance between two points in the X-Y plane is
- given by distance = sqr(x^2 + y^2).
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- #32
- Hypotenuse
- The hypotenuse of a right triangle is the side opposite
- the right angle.
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- #34
- Inequality
- A statement of inequality includes algebraic expressions
- and the operators > (greater than), >= (greater than
- or equal to), < (less than), or <= (less than or equal to).
- #35
- Quadratic equation
- A quadratic equation is an equation of the form
- A*x^2 + B*x + C = 0.
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- #36
- Factoring
- Factoring is a method of solving equations by which
- a polynomial is expressed as a product of other
- polynomials, which can be set to zero.
- #37
- Quadratic formula
- The quadratic formula gives the roots of a quadratic
- equation A*x^2 + B^x + C = 0 by
- (-B + Sqr(B^2-4*A*C))/(2*A) and (-B - Sqr(B^2-4*A*C))/(2*A)
- #38
- Roots
- The zeros of a function are the x-intercepts of the
- graph of the function. They are the roots of the
- equation f(x) = 0.
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