Essential Skills
This term refers to the middle
number in a set of numbers.
What is “median”?
The product of (2x3) and (-6x2).
What is “-12x5”?
The factored form for this expression is 2(x + 2)(x - 3).
What is “2x2-2x-12”?
This is the next term in the arithmetic sequence {5, 1, -3, -7, ?}.
What is “11”?
This is the length times the width.
What is “area”?
You need this type of denominator
to add fractions with different
denominators.
What is a “common denominator”?
The number of solutions for x given
|x-1| = 3.
What is “2”?
This expression means 6 less than 2 times a number, n.
What is “2n - 6”?
This is where logbc is undefined.
What is “where c < 0”?
This is the quadrant where x is negative and y is negative.
What is “III”?
This is the name of a fraction where
the numerator is greater than the denominator.
What is an “improper fraction”?
The square root of a negative number.
What is an “imaginary number”?
This must be added to 3x2-3x + 5 to give the sum 4x2 + 2x + 7.
What is “x2 + 5x + 2”?
This is the value of f(2) when f(x) = x2- 2.
What is “2”?
This is what the angles formed from a point on a straight line sum to.
What is “180o”?
This is the product of 0.15 and 250.
What is “37.5”?
This has both magnitude and direction.
What is a “vector”?
This is what x is equal to when x2 + x - 6 = 0.
What is “x = -3, 2”?
This is the asymptote of the function with the power of the variable larger in the denominator than in the numerator.
What is “y = 0” or “horizontal asymptote”?
This is the surface area of a cube if a face of the cube has an area of 45 in2.
What is “270 in2”?
436,298,000 in scientific notation.
What is an “4.36298 x 108”?
For a 2x2 matrix, the formula is ad -bc.
What is the “determinant”?
This is the equation of the line (in y = mx + b form) with slope 2 and passes through (1, 3).
What is “y = 2x + 1”?
This describes a function with a graph that is symmetric about the origin.
What is “odd”?
This is the length of the hypotenuse of a right triangle with legs of length 8 in and 7 in.
What is “ √113 in” or “approximately 10.63 in”?