Uses operation symbols (+, -, x, and so on) to combine variables and numbers.
To tell what happened ahead of time; to make an educated guess about what might happen.
A comparison by division of two quantities with different units. For example, traveling 1oo miles in 2 hours can be expressed as 100 mi/2 hr or 50 miles per hour. In this case, the rate compares distance (miles) to time (hours).
Rate of Speed
A speed tells how many units of distance there are for a given unit of time.
A general rule for finding the value of something. A formula is often written symbolically using letters, called variables, to stand for the quantities involved.
A graph in which data points are connected by a line or line segments.
Ordered Number Pairs
A pair of numbers used to locate a point on a coordinate grid. The first number corresponds to position along the horizontal axis, and the second number corresponds to position along the vertical axis.
Numbers used to locate a point on a number line, or one of two numbers used to locate a point on a coordinate grid.
A comparison by division of two quantities with the same units. Rations can be expressed as fractions, decimals, or percents, as well as in words.
The distance around a circle or maximum distance around a sphere.
A line segment that passes through the center of a circle or sphere and has endpoints on the circle or sphere: also, the length of such a line segment. The diameter of a circle or sphere is twice the length of the radius.
A line segment from the center of a circle or sphere to any point on the circle or sphere; also the length of such a line segment. Your browser may not support display of this image.
The ratio of the circumference of a circle to its diameter. Pi, which is approximately 3.14, is the same for every circle. Pi is also the ration of a circle's area to the square of its radius.