In math, a ray is part of a line that has an endpoint at its starting point and extends in a certain direction into infinity. Drawing a ray involves placing a line with one endpoint and an arrow point on the other end. To name a ray, the convention is to use the letter at the starting point followed by a letter near the arrow point.Know More
One can use capital letters to name a ray, and over the two letters is drawn a ray symbol. An alternate convention used to name a ray is to use one lower case letter.
Two rays that diverge from a common starting point are called an angle. Another name for this starting point is the vertex of the angle.Learn more about Exponents
When a number is squared in math, it means it's been multiplied by itself. For example, two squared is two times two, or four; and 10 squared is 10 times 10, or 100. When a number is squared, it is written as that number (the base) to the second power.Full Answer >
To find the y-intercept of a line, substitute the values of x and y coordinates into an equation representing the line. Set x to 0, then solve for y. If the equation is already in the slope-intercept form of y = mx + b, the value of b is the y-intercept.Full Answer >
In math, the definition of an exponent is a numerical notation that indicates the number of times a number is to be multiplied by itself. The exponent is written as a small number in superscript following the number to be multiplied.Full Answer >
A cubed number in math is one that has been multiplied by itself three times. They are called cubed numbers because the height, width and depth of a cube are all the same. The cubes of whole numbers, or counting numbers, including zero, are called perfect cubes.Full Answer >